Biological Sciences, Division of
STUDENT AFFAIRS OFFICE
1128 Pacific Hall
(858) 534-0557 (undergraduate)
(858) 534-0557 (graduate)
FINANCIAL AND ADMINISTRATIVE OFFICES
1610 Urey Hall, Revelle College
http://www-biology.ucsd.edu/
Professors
Courses
Division of Biological Sciences Required Review of Student Progress
Freshmen
Effective fall 2002, the Division of Biological Sciences will eliminate
pre-major status with the exception of the biology major with specialization
in bioinformatics. Entering students who have indicated the desire to
major in biology will be admitted directly to the biology major of their
choice. To remain in good standing the student must complete a minimum
of eight of the following courses (or equivalent) during their first
five quarters at UCSD:
BILD 1, BILD 2, BILD 3
Chemistry 6A-B-C
Math 10A-20A, 10B-20B, 10C-11-20C-21C
Physics 1A-2A, 1B-2B, 1C-2C
Chemistry 140A-141A, 140B-141B
BICD 100
BIBC 103
A students best six grades from the eight courses listed will
be used to calculate a GPA which must be at least a 2.5. If a student
fails to complete the required courses, or to obtain the required minimum
GPA, they will be dismissed from the biology major.
(Note: These are the minimal requirements to remain in the
major, and do not satisfy all of the lower-division requirements of
any biology major. Please consult the section regarding your particular
major to ensure that you satisfy all lower-division and upper-division
requirements.)
Continuing Students
Continuing UCSD students who wish to transfer into the major will
be evaluated under the rules that were in effect the year in which they
entered the university.
Transfer Students
Effective fall 2002, the Division of Biological Sciences will eliminate
pre-major status with the exception of the biology major with specialization
in bioinformatics. Entering students who have indicated the desire to
major in biology will be admitted directly to the biology major of their
choice. To remain in good standing the student must have completed eight
of the following courses, or course equivalency, prior to transfer to
UCSD:
BILD 1, BILD 2, BILD 3
Chemistry 6A-B-C
Math 10A-20A, 10B-20B, 10C-11-20C-21C
Physics 1A-2A, 1B-2B, 1C-2C
Chemistry 140A-141A, 140B-141B
BICD 100
BIBC 103
A students best six grades from the eight courses listed will
be used to calculate a GPA which must be at least a 2.5. If a student
fails to complete the required courses, or to obtain the required minimum
GPA, they will be dismissed from the biology major. Transfer students
who do not meet these requirements will be allowed a maximum of three
quarters to satisfy any unmet requirements. Transfer students are therefore
strongly encouraged to complete these requirements at their community
college. (Note: These are the minimal requirements to remain
in the major, and do not satisfy all of the lower- division requirements
of any biology major. Please consult the section regarding your particular
major to ensure that you satisfy all lower-division and upper-division
requirements.)
Satisfactory Progress
All students admitted into a biology major must maintain satisfactory
progress in order to remain in a biology program. If the GPA in biology
courses for such a student falls below 2.0, he or she will be placed
on probation during the quarter after the average fell below the line.
If the GPA is not brought above the 2.0 level during the quarter on
probation, the student will be dropped from the major.
Prerequisites
All students are expected to have completed all prerequisites prior
to enrolling in any biology course. Please visit the student affairs
office or consult our Web page for the most current information. Prerequisites
are enforced in all courses and must be taken for a letter grade. Students
who have satisfied the prerequisites of a class at another college or
by AP credit need to be pre-authorized to enroll. Please come to the
biology student affairs office (1128 Pacific Hall) BEFORE your priority
enrollment to be pre-authorized.
Exceptions
The division will accept petitions from students to remain in the
major with less than the required GPA or course work, and the success
of such petitions will be evaluated based upon academic promise that
is not reflected in the GPA. Exceptions might also be made to accommodate
students who showed exceptional promise in laboratory experimentation,
or students who had overcome extraordinary hardship while taking the
required courses.
Enrollment in Upper-Division Biology Classes by Non-Biology Students
Because biology is a popular major, enrollment in upper-division biology
courses is limited to biology majors, and those majors for which upper-division
biology courses are required for graduation. Every effort will be made,
on a space available basis, to enroll students from other majors in
those biology lecture and laboratory courses which may be required for
postgraduate study.
Division of Biological Sciences Residency Requirement
To receive a bachelor of science degree in biology from UCSD, all
students must complete at least nine upper-division biology courses
(each course must be at least four units) in the Division of Biological
Sciences while officially enrolled at UCSD. (Students participating
in the Education Abroad Program (EAP), and courses at other UC campuses,
may petition up to three of these courses to count toward their residency
minima.) Biology courses completed through the UC Extension program
(concurrent enrollment) will not be counted toward this residency requirement.
Division of Biological Sciences Laboratory Requirement
Freshmen
Effective fall 2003, the Division of Biological Sciences will require
students in all biology majors, with the exception of bioinformatics,
to take one biology lab before the end of the sophomore year.
Continuing Students
Continuing UCSD students who wish to transfer into the major will
be evaluated under the rules that were in effect the year in which they
entered the university.
Transfer Students
Effective fall 2003, the Division of Biological Sciences will require
students in all biology majors, with the exception of bioinformatics,
to take one biology lab before the end of the sophomore year. Transfer
students may petition to have community college course work cover the
lab requirement. Transfer students whose community college laboratory
course is determined to be equivalent in content to an existing biology
lab will have completed the requirement upon transfer. Transfer students
are therefore strongly encouraged to complete this requirement at their
community college. Transfer students who do not meet this requirement
at the time of transfer may petition the division for an extension.
Grade Requirements for the Majors
The minimum GPA requirement (for both the major and overall UC) for
graduation is 2.0. D grades in courses required for the major are acceptable,
providing that the students major GPA and overall UC GPA is at
least 2.0. Students who received D and/or F grades should contact one
of the Division of Biological Sciences undergraduate advisers to determine
the effect of such grades on their GPAs. The biology major GPA calculation
is based on upper-division courses required for the major. (Upper-division
courses from other UCs, other UCSD departments, and EAP which have been
approved via petition to count toward the major are counted into the
major GPA. Other transfer courses do not count toward the UC or major
GPA.) All courses, required for any of the eight majors, must be taken
for a letter grade with the exception of BISP 195, 196, 197, or 199.
Students with Transfer Credit
All courses (including prerequisites) taken at other institutions
must be reviewed by the Division of Biological Sciences before they
can be applied toward any major requirement. Students must obtain approval
from the Biology Student Affairs office prior to taking courses outside
of UCSD (for example, students wishing to take a Chem. 6BL equivalent
at another institution must consult with Biology Student Affairs before
enrolling in the substitute course). In addition, any student wishing
to satisfy a major requirement with upper-division transfer work (with
the exception of organic chemistry) must first submit a General Petition.
Contact Biology Student Affairs (1128 Pacific Hall) for specific information
regarding transfer documentation and petition procedures.
Effective fall 2000, the Division of Biological Sciences will require
that students take the full content equivalencies to UCSD series in
math, chemistry, and physics. The Division of Biological Sciences will
follow the respective departments recommendations for equivalency.
In some cases, attaining full content equivalency will require a student
to complete more than two semesters in a subject. If the courses a student
took do not provide full content equivalency, s/he will be required
to complete the lacking material at UCSD or at a community college where
the material is equivalent.
Programs Abroad
The Division of Biological Sciences strongly encourages students to
participate in the Education Abroad Program (EAP) or the UCSD Opportunities
Abroad Program (OAP). It is very important that students who plan to
participate in the UC Education Abroad Program (including the Costa
Rica Tropical Ecology program) or the UCSD Opportunities Abroad Program
obtain the name of a faculty adviser from the Biology Student Affairs
Office in order to discuss the proposed program of study. For most EAP
programs, it is strongly recommended that biology majors complete biochemistry
(BIBC 100 or 102) and genetics (BICD 100) and their prerequisites before
going abroad.
Special Studies Courses
Only one quarter of BISP 195 and one quarter of BISP 196, 197, or
199 may be counted toward any biology major. For information on requirements
and application procedures for special studies courses students should
go to the Biology Student Affairs Office (1128 Pacific Hall).
BISP 195Introduction to Teaching in Biology
Being a teaching assistant is an important task and can provide students
with experience and faculty contact which can be valuable when applying
for graduate school. Students who are interested in being an undergraduate
tutor should have received a strong grade in the course which they want
to teach, have an overall GPA of at least 3.0, and have taken at least
ninety total units. Students should apply very early in the quarter
prior to the quarter they wish to teach. Applications will be accepted
beginning the second week of the quarter prior to the quarter in which
the student wishes to teach. All undergraduate tutor applications are
online and may be accessed through the biology Web site, http://www.biology.ucsd.edu/undergrad/index.html.
BISP 196Honors Thesis in Biological Sciences
Students in any one of the eight biology major programs who have a
3.7 grade-point average or above in upper-division science courses,
the biology major, and overall UC at the end of their junior year are
eligible to undertake the honors thesis. This program covers the senior
year of undergraduate study and involves a maximum of twelve units of
senior thesis research (BISP 196) taken in addition to the major requirements
for graduation. (Four units of senior thesis research BISP 196 are to
be taken during three consecutive quarters.) Research is conducted under
the supervision of a faculty member of the Division of Biological Sciences
only and cannot be performed in the research labs of other departments
such as the School of Medicine, SIO, etc. If there are any questions
as to which faculty members are eligible, students should consult with
Biology Student Affairs. The research will culminate in a senior thesis
and an oral report (see below). Students who complete the program satisfactorily
will have Distinction in Biology recorded on their transcript.
Students who fail to make satisfactory progress will be advised to withdraw
from the program and, if eligible, will receive four units per quarter
of BISP 199. Students may also withdraw voluntarily from the program
and, if eligible, receive appropriate credit for BISP 199. Grades for
BISP 196 are P, NP, or I only.
Application to the Honors Thesis Program
- Students interested in the program who are eligible as of the end
of the spring quarter of their junior year (the fourth quarter prior
to graduation) need to find a Division of Biological Sciences faculty
member willing to act in the capacity of thesis adviser and inform
the Biology Student Affairs Office of their intent.
- After an adviser is selected, the student and the adviser should
complete the Special Studies application form (available from the
Biology Student Affairs Office, 1128 Pacific Hall). The form should
contain the research proposal.
- The application form should then be submitted to the Biology Student
Affairs Office. The deadline for submitting this form is the end of
the eighth week of the quarter prior to the quarter the research will
begin.
- The application will be submitted to the honors thesis coordinator
after eligibility has been determined.
- If the student is approved for admission to the program, he or she
will then be authorized to register for BISP 196.
Entry into the second and third quarter of the program will require
submission to the honors thesis adviser of a written report in which
the student summarizes the data obtained in the previous quarters. A
brief oral interview with the student on this report can also be expected.
If the progress made appears reasonable for an honors student, then
the 196 petition will be signed. If not, conversion of the 196 credit
to BISP 199 will be recommended. Completion of the program will require
a final written report by the student at the end of the third quarter
in addition to an oral presentation in the middle of the quarter to
a suitable group of faculty and students, including the honors thesis
adviser.
BISP 197Biology Internship Program
The Division of Biological Sciences, in collaboration with local biotech
industries, created Biotechnology Internship Opportunities (BIO). The
mission of BIO is to provide biology majors with an opportunity to participate
in research in an industrial setting. We believe that working as an
intern in the private sector will enrich a students educational
experience. Students will gain valuable insight into the relationship
between theory and practice, and hence, a better understanding of the
relevance of course work in their major. Most importantly, students
will learn the importance of outstanding oral and written communication
skills. This course may be counted as one of the upper-division electives
for a biology major, providing that no other special studies courses
have already been counted toward the major. Information on BIO may be
accessed through the undergraduate biology Web site, http://www.biology.ucsd.edu/undergrad/index.html.
To enroll in BISP 197, students must have accrued at least ninety-quarter
units with an overall UC GPA of at least 3.0.
There will be one weekly scheduled meeting lasting up to 1.5 hours.
Attendance and participation at these meetings are mandatory and will
affect the grade a student receives. There will be three formal oral
and three written presentations, interspersed with informal discussions
of progress achieved. All written reports must be done with the input
of the industry and must have that mentors signature. Grading
will be based on the formal and informal written and oral presentations,
as well as input from the industry mentor.
BISP 199Independent Study for Undergraduates
Independent Study BISP 199 is intended to provide interested and qualified
biology students with an opportunity to work closely with faculty and
professionals in their chosen field and can be a valuable contribution
to the students preparation for graduate school or career goals.
To enroll in BISP 199, students must have accrued at least ninety quarter-units
with an overall UC GPA of at least 3.0. Students may select for their
instructor any professor at UCSD, but the BISP 199 application must
be submitted for approval to the Division of Biological Sciences. The
deadline to apply for BISP 199 is the eighth week of the quarter prior
to the quarter in which the research will begin.
AIP 197Academic Internship Program
Because the undergraduate research conducted through the Academic Internship
Program is generally done at a site not affiliated with the UCSD Division
of Biological Sciences, students who wish to request that an AIP 197 course
be counted toward their major must submit a General Petition for their
request before the end of the eighth week of the quarter prior to the
quarter in which research will begin. This early deadline allows time
for the biology faculty to review and contribute to the students
research proposal and ascertain the projects compatibility with
the students academic goals. If an AIP 197 course is approved for
the students major, no other special studies course (BISP 196, 197,
or 199) can be used toward the major. For further information, please
see http://aip.ucsd.edu
Major Programs in Biological Sciences
For more information, please see biologys web page, http://www-biology.ucsd.edu/
The UCSD Division of Biological Sciences is structured around the
different levels of biological organizationbiochemical, cellular,
physiological, and ecological. The research and teaching of the division
emphasize the fundamentally important processes that occur at each of
these levels. With a solid foundation in these processes future training
and study in any area of biology is possible, from plant breeding to
genetic counseling, from medical microbiology to ecological epidemiology,
from veterinary science to cancer research. The UCSD campus is situated
among some of the finest research institutions in the world. The Division
of Biological Sciences is fortunate in having close ties with the Scripps
Institution of Oceanography, the Salk Institute of Biological Studies,
and the Scripps Clinic and Research Foundation, all of which open interesting
avenues for motivated students.
The division offers eight different major programs, each of which
provides an excellent background for future graduate or professional
study. They are (1) animal physiology and neuroscience, (2) biochemistry
and cell biology, (3) biology with a specialization in bioinformatics,
(4) ecology, behavior, and evolution, (5) general biology, (6) human
biology, (7) microbiology, and (8) molecular biology. The requirements
of each of the majors are designed to meet the needs of a different
group of students. These requirements are quite concordant, reflecting
the divisions philosophy that familiarity with certain basic aspects
of the subject is fundamental to all specialized understanding. Bachelor
of science degrees granted in each of these majors will be so designated.
The Student Affairs Office (1128 Pacific Hall) administers the undergraduate
biology program for all six colleges. For complete details regarding
policies and procedures pertaining to the biology programs, please contact
Biology Student Affairs.
Animal Physiology and Neuroscience Major
Please refer to the Division of Biological Sciences Required
Review of Student Progress notice detailed earlier in the Division
of Biological Sciences section of this catalog.
The animal physiology and neuroscience major provides a program for
studying the bodily and neural functions of complex organisms. Within
this major, a student may concentrate upon more specialized areas of
study, such as human biology, neurobiology, or endocrinology. This major
is most directly applicable to health-related professions such as medicine,
nursing, dentistry, veterinary medicine, pharmacy, physical therapy,
and medical technology. Animal physiology and neuroscience majors are
also well prepared to enter other professions such as physiological
research, physical education, agriculture, and wildlife management.
Lower-Division Requirements
Mathematics 10A-B, and 10C or 11 or 20A-B, and 20C or 21C
Chemistry 6A-B-C, and one lab
Physics 1A-B-C or 2A-B-C, and one lab
BILD 1 and 2 or BILD 1 and 3
Upper-Division Requirements
Listed below are the upper-division courses required for the animal
physiology and neuroscience major. The first four requirements provide
exposure to the current understanding of subcellular function that should
be at the command of all modern biologists. Requirements 5 and 6 constitute
the core of the animal physiology and neuroscience major. By choosing
three optional four-unit upper-division biology courses (requirement
9), a program geared to the needs of the individual student can be formulated.
- Organic Chemistry (Chemistry 140A, 140B, or 141A, 141B)
- Organic Chemistry Laboratory (Chemistry 143A)
- Metabolic Biochemistry (BIBC 102) Effective fall 2000, entering
freshmen will be required to complete BIBC 102. Students entering
prior to fall 2000 may complete either Structural Biochemistry (BIBC
100) or Metabolic Biochemistry (BIBC 102). Both are recommended. Transfer
students will be held to the new requirements beginning fall 2002.
- Genetics (BICD 100)
- Molecular Biology (BIMM 100)
- Four from the following seven courses:
- Mammalian Physiology I (BIPN 100)
- Mammalian Physiology II (BIPN 102)
- Comparative Physiology (BIPN 106)
- Cellular Neurobiology (BIPN 140)
- Systems Neurobiology (BIPN 142)
- Developmental Neurobiology (BIPN 144)
- Computational Neurobiology (BIPN 146)
- One of four laboratories (BICD 131, BICD 133, BIPN 105, BIPN 145)
- One upper-division biology lab to be chosen from the following:
BIBC 103, 105, BICD 101, 111, 123, 131, 133, 145, BIEB 121, 131, 165,
167, 179, BIMM 101, 103, 121, 127, BIPN 105, 145. This requirement
may include a lab from number 7 that has not already been taken by
the student.
- Three additional upper-division biology courses (each course must
be at least four units) taken through the UCSD Division of Biological
Sciences are required and may include the above (numbers 68).
These may include no more than one quarter of BISP 195 and one quarter
of either BISP 196, 197, or 199 (AIP 197 may be used in place of BISP
196, 197, or 199 upon approval by the faculty adviser). (Subsequent
quarters of 195, 196, 197, or 199 may be applied toward college and
university requirements.)
Biochemistry and Cell Biology Major
Please refer to the Division of Biological Sciences Required
Review of Student Progress notice detailed earlier in the Division
of Biological Sciences section of this catalog.
This major is designed to provide students with the fundamental courses
required for entry into a school of medicine or into postgraduate training
in a wide variety of areas of biological and biomedical sciences: biochemistry,
biophysics, genetics, molecular biology, cell biology, developmental
biology, microbiology, virology, human biology (physiology, metabolism,
genetic disorders), cancer biology, pharmacology, and others. The emphasis
is on basic principles which help us understand those processes unique
to living organisms at the molecular level.
The program includes two required upper- division biology laboratory
courses to provide practical experience with modern techniques and useful
technology for those seeking positions as lab technicians in clinical
and basic research laboratories. The opportunity to select five elective
courses allows students either to seek a still broader background in
a variety of biology courses or to begin specialization in a chosen
field of study.
Lower-Division Requirements
Mathematics 10A-B, and 10C or 11 or 20A-B, and 20C or 21C
Chemistry 6A-B-C, and one lab
Physics 1A-B-C or 2A-B-C, and one lab
(Mathematics 20A-B-C, and Physics 2A-B-C are recommended)
BILD 1 and 2 or BILD 1 and 3
Upper-Division Requirements
- Organic Chemistry (Chemistry 140A and 140B or 141A and 141B)
- One chemistry laboratory: Organic Chemistry (Chemistry 143A) or
Physical Chemistry (Chemistry 105A)
- Structural Biochemistry (BIBC 100) or Physical Biochemistry (BIBC
110) or Physical Chemistry (Chemistry 126)
- Metabolic Biochemistry (BIBC 102)
- Biochemical Techniques (BIBC 103)
- Genetics (BICD 100)
- Cell Biology (BICD 110)
- Molecular Biology (BIMM 100)
- One upper-division biology lab to be chosen from the following:
Signal Transduction (BIBC 105), Eukaryotic Genetics (BICD 101), Cell
Biology (BICD 111), Plant Molecular Genetics and Biotechnology (BICD
123), Embryology (BICD 131), Developmental Biology Lab (BICD 133),
Laboratory in Molecular Medicine (BICD 145), Recombinant DNA Techniques
(BIMM 101), Advanced Techniques in Molecular Genetics (BIMM 103),
Microbiology (BIMM 121), Environmental Microbiology (BIMM 127), Bioinformatics
Lab (BIMM 141), Animal Physiology Lab (BIPN 105), Neurobiology Lab
(BIPN 145), or Organic Chemistry (Chemistry 143C).
- Five additional upper-division biology courses (each course must
be at least four units) taken through the UCSD Division of Biological
Sciences are required. Only one quarter of BISP 195 and one of BISP
196, 197, or 199 may be applied toward the fulfillment of this requirement.
Students may use only one BISP 199 for meeting major requirements.
(Subsequent quarters of BISP 195, 196, 197, or 199 may be applied
toward college and university requirements.)
The following courses offered by the Depart-ment of Chemistry and
Biochemistry are recommended as electives for the biochemistry and cell
biology major: Chemistry 115, 116, 122, 124, 126, 127. Please note that
these courses will not count towards the Division of Biological Sciences
residency requirement and must be petitioned.
Bioinformatics Specialization in the Division of Biological Sciences
This major offers a rigorous, interdisciplinary training in the new
and rapidly-evolving field of bioinformatics within the Division of
Biological Sciences. Bioinformatics refers to advanced computational
and experimental methods that model the flow of information (genetic,
metabolic, and regulatory) in living systems to provide an integrated
understanding of the systems properties of model organisms. For a detailed
understanding of the large amount of qualitative and quantitative data
that is currently accruing, the bioinformatician of the future must
have a substantial mastery in biology, chemistry, mathematics, physics,
and computer sciences. This interdisciplinary specialization will be
offered by three other departments (computer science and engineering,
chemistry, and bioengineering), each with their own set of requirements
and electives. The program offered by the Division of Biological Sciences
is aimed at a student interested in applying, and to some extent developing,
tools of bioinformatics for the study of biological systems. Students
will receive a B.S. degree in Biology with a Specialization in Bioinformatics.
This degree will prepare students for graduate studies in biological
and biomedical sciences, or provide excellent opportunities in the biomedical,
pharmaceutical, biotechnology, and bioinformatics industries.
Admission
Because the number of pre-majors and majors will be limited as described
in the section on bioinformatics, student demand may exceed capacity.
Therefore, admission to the specialization is not guaranteed and will
be based on academic excellence, as described below. Since bioinformatics
is an interdisciplinary major, a steering committee involving faculty
from the participating departments will select among the best candidates
applying and recommended through each department, while insuring active
participation of the departments and divisions offering the major.
Freshmen
Effective fall 2001, entering freshmen will go through a two-stage
process to be admitted to a bioinformatics program. Students should
enter the division as a declared major in some subdiscipline offered
by the division (e.g., molecular biology, general biology, etc.) Freshmen
can choose to apply for a bioinformatics pre-major after completing
the following courses by the end of their first year. Admission will
be based primarily on the GPA in the following courses, but also on
a written statement, completion of the other listed requirements and
overall academic excellence:
Math 20B
Math 21C or 20C
BILD 1
Chem 6A
Pre-bioinformatics majors can then choose to apply for admission to
the bioinformatics major after competing CSE 11 and CSE 12 by the end
of their sophomore year. Admission to the bioinformatics major within
each department or division will be based on the GPA in all six screening
courses. The final decision on admission to the pre-major and major
will be made by the bioinformatics Steering Committee, in consultation
with the departments.
If a student applies for admission to the bioinformatics specialization
but is not selected after completion of the screening courses, that
student will be eligible to remain in the specialization or major to
which they were admitted initially. Students with undeclared majors
may also apply to the bioinformatics specialization, but in the event
they are not selected for this competitive major, they may choose any
other major in biology as long as they satisfy the requirements of that
major.
Continuing Students
Students who have not declared the bioinformatics pre-major, but who
have completed the screening courses, may apply for entry to a bioinformatics
program after six quarters (the end of the sophomore year). They will
be admitted on a space-available basis, after pre-majors have been screened
for admission to the major.
Transfer Students
Effective fall 2003, applicants seeking admission to a bioinformatics
major must have completed the following courses with a strong GPA that
is competitive with that of UCSD students applying for entry into this
specialization:
a year of calculus (equivalent to Math 20A-B and 21C)
a year of general chemistry, with lab (equivalent to Chem 6A-B-C and
6BL)
the highest level programming course offered at the community college
(equivalent to CSE 11 and 12)
one semester of biology (equivalent to BILD 1 and BILD 2)
Those who have not completed the equivalent courses may be admitted
as pre-majors, using the same criteria that apply for UCSD students,
and will be allowed a maximum of three quarters to complete pre-major
requirements. Transfer students are therefore encouraged to complete
these requirements at the community college.
If a student applies for admission to a bioinformatics specialization
but is not selected after completion of the screening courses, that
student will remain eligible for specialization or major to which they
were originally admitted.
Lower-Division Requirements
Mathematics 20A-B, 21C, 20F and Mathematics 15B or CSE 21
Chemistry 6A-B-C, and lab
Physics 2A-B-C
BILD 1 and 2
BILD 94
CSE 11, CSE 12 (Students may take the slower paced version, CSE 8A +
CSE 8B, instead of CSE 11.)
Upper-Division Requirements
- Organic Chemistry (Chemistry 140A-B)
- Advanced Data Structure (CSE 100 or Mathematics 176)
- Design and Analysis of Algorithms (CSE 101 or Mathematics 188)
- Metabolic Biochemistry (BIBC 102) or Biochemical Energetics and
Metabolism (Chemistry 114B)
- Biochemical Techniques (BIBC 103)
- Physical Biochemistry (BIBC 110) or Physical Chemistry (Chemistry
127)
- Genetics (BICD 100)
- Cell Biology (BICD 110)
- Molecular Biology (BIMM 100) or Molecular and Cellular Biochemistry
(Chem 114D)
- Recombinant DNA Lab (BIMM 101)
- Molecular Sequence Analysis (BIMM 181)
- Biological Databases (BIMM 182)
- Applied Genomic Technologies (BENG 183)
- Computational Molecular Biology (BIMM 184)
- Bioinformatics Lab (BIMM 185)
- Probability and Statistics (Math 186)
- Three additional upper-division biology courses (each course must
be at least four units) taken through the UCSD Division of Biological
Sciences are required.
Ecology, Behavior and Evolution Major
Please refer to the Division of Biological Sciences Required
Review of Student Progress notice detailed earlier in the Division
of Biological Sciences section of this catalog.
This major includes the fields of population biology, ecology, conservation
biology, animal behavior, population genetics, biogeography, and evolution.
These fields have in common a focus on evolutionary processes and whole
organisms in relation to each other and to their environments. Research
careers in ecology, behavior, and evolution can be found in universities,
government agencies, and the biotechnology industry. More applied careers
for ecologists are equally varied: recent graduates now work in forestry
and wildlife management, as ecological consultants for U.S. and foreign
governments and private industry, as teachers, or in new fields such
as ecological medicine and epidemiology, environmental design and planning,
and conservation biology. Because organismal biology spans such a wide
variety of topics, this major has been designed to provide the basic
fundamentals while allowing maximum flexibility within the general topic
areas.
Lower-Division Requirements
Mathematics 10A-B, and 10C or 11 or 20A-B, and 20C or 21C. The 20
sequence is recommended.
Chemistry: Chemistry 6A-B-C. Laboratories in chemistry are not
required.
Physics: Physics 1A-B-C or Physics 2A-B-C. Laboratories in physics
are not required.
BILD 1 and 3
Upper-Division Requirements
- Metabolic Biochemistry (BIBC 102) Effective fall 2000, entering
freshmen are required to complete BIBC 102. Transfer students will
be held to the new requirements beginning fall 2002. Students entering
prior to fall 2000 may complete either Structural Biochemistry (BIBC
100) or Metabolic Biochemistry (BIBC 102). Both are recommended. Please
note that organic chemistry (Chemistry 140A-B) is a prerequisite for
biochemistry. These prerequisite courses may be applied as elective
courses under requirement number five listed below.
- Genetics (BICD 100)
- Biometry (BIEB 100) This course is a prerequisite for several core
courses and should be taken in the first or second year.
- Ecology, Behavior, and Evolution. Seven courses to be chosen from
BIEB 102180 are required. At least two of these courses must
be laboratory or field courses (BIEB 121, 131, 165, 167, and/or 179).
BIEB 102, 126, 128, 130, 140, 150, 164, 166, and 180 are designed
to be taken by third-year students; BIEB 121, 131, 134, 154, 156,
165, 167, 176, 178, 179, and 180 are designed to be taken by more
advanced students. Laboratory courses may be taken either concurrently
with the prerequisite lecture course if Biometry (BIEB 100) has been
taken, or during the subsequent academic year. Note that some of the
laboratory courses may not be offered every year. For that reason,
it is recommended that students take as many required courses as possible
when the courses are offered.
- Four additional upper-division courses (each course must be at
least four units) in biology, chemistry, mathematics, or related sciences
are required. Students are requried to meet the Division of Biological
Sciences residency requirement. Courses to be completed outside of
the UCSD Division of Biological Sciences must be petitioned
(prior to commencement of the course) to satisfy this requirement.
Transfer courses are considered to be outside of the division. Students
participating in the Education Abroad Program should refer to the
biology section of that topic or contact the undergraduate adviser.
Courses outside the Division of Biological Sciences that are particularly
appropriate and that have been approved in the past include: Chemistry
122 and 149A, Mathematics 111A-B-C, 180A-B-C, and 181A-B-C; Biological
Anthropology (most courses); and Earth Sciences (most courses); Economics
131; Scripps Institution of Oceanography (consent of instructor required).
Chemistry 140A and 140B only may be used to satisfy the elective requirement
without petition. Only one quarter of BISP 196, 197, or 199 and one
quarter of BISP 195 may be used to fulfill this requirement. (Subsequent
quarters of 195, 196, 197, or 199 may be applied toward college and
university requirements.) Certain intensive spring and summer session
courses offered at various universities and field stations throughout
the country may be used to help satisfy this requirement if prior
approval is obtained from the faculty adviser of the major by petition.
A good example is the field course in tropical biology offered in
Costa Rica each spring and fall quarter. Prerequisites for the Costa
Rica program are: BIEB 100, 102, and familiarity with Spanish; some
type of field research experience, such as BIEB 121, 165 and/or 167,
a field oriented BISP 199, or participation in a field research project,
is strongly recommended. Biology courses taken through the Costa Rica
program will be counted toward the major as one core course, one core
laboratory/field course, and one elective. These courses must be petitioned
upon completion. Consult the Education Abroad Program Office at the
UCSD International Center for details.
A systemwide supercourse in environment biology held at the White
Mountain Research station provides another attractive alternative to
gaining field experience. For more information, consult http://www.wmrs.edu/
General Biology Major
Please refer to the Division of Biological Sciences Required
Review of Student Progress notice detailed earlier in the Division
of Biological Sciences section of this catalog.
This program allows the most diversified exposure to biology of any
of the majors offered by the Division of Biological Sciences. It is
designed for students with broad interests who do not wish to be constrained
by the specialized requirements of the other majors and who desire maximum
freedom to pursue their particular educational goals.
Lower-Division Requirements
Lower-division requirements are designed to provide the foundations
in mathematics, physics, and chemistry that are fundamental to the study
of biology. In addition, an introduction to biology is required to provide
the appropriate background for upper-division biology courses. The lower-division
requirements are subsumed in large part under those of the various colleges.
Mathematics 10A-B, and 10C or 11 or 20A-B, and 20C or 21C
Chemistry 6A-B-C, and one lab
Physics 1A-B-C or 2A-B-C and one lab
BILD 1 and 2 or BILD 1 and 3
Upper-Division Requirements
Listed below are the upper-division course requirements for the general
biology major. Specific requirements have been held to a minimum for
this major in order to allow students maximum freedom in fitting course
schedules to their particular educational goals. Because of the central
positions of biochemistry and genetics in all of modern biological thought,
only Biochem-istry (BIBC 100 or 102), its organic chemistry prerequisites
(Chemistry 140A and B), and Genetics (BICD 100) are prescribed requirements
for general biology majors.
- Organic Chemistry (Chemistry 140A and 140B or 141A and 141B)
- Metabolic Biochemistry (BIBC 102). Effective fall 2000, entering
freshmen are required to complete BIBC 102. Transfer students will
be held to the new requirements beginning fall 2002. Students entering
prior to fall 2000 may complete either Structural Biochemistry (BIBC
100) or Metabolic Biochemistry (BIBC 102). Both are recommended.
- Genetics (BICD 100)
- Two upper-division biology labs to be chosen from the following:
BIBC 103, 105, BICD 101, 111, 123, 131, 133, 145, BIEB 121, 165, 167,
179, BIMM 101, 103, 121, 127, BIPN 105, or 145.
- Eight additional upper-division biology courses (each course must
be at least four units) taken through the UCSD Division of Biological
Sciences are required. Only one quarter of BISP 195 and one quarter
of either BISP 196, 197, or 199 may be applied toward this requirement.
(Subsequent quarters of 195, 196, 197, or 199 may be applied toward
college and university requirements.)
Although students are free to design upper-division curricula which
meet their individual educational goals, Molecular Biology (BIMM 100)
and Cell Biology (BICD 110) are strongly recommended for those contemplating
applying to graduate or professional schools.
Human Biology Major
This major is designed to provide students with the fundamental courses
required for entry into: schools of medicine, veterinary medicine, dentistry,
and pharmacy; Ph.D. programs in the biomedical sciences; and biotech
research, teaching, medical technology, patent law, physical therapy,
nutrition, and nursing. The core classes required of all human biology
majors provide the student with the basic principles that help us understand
normal human physiology and the molecular basis of human disease. The
course options in Human Physiology, Human Disease, and Biomedical-related
laboratories provide the students with educational breadth while still
allowing them considerable flexibility in tailoring their course of
study to suit their educational goals.
Lower-Division Requirements
- Biology: BILD 1 and BILD 2 or BILD 1 and BILD 3
- Chemistry: Chemistry 6A, 6B, 6C and Lab 6BL or 6CL
- Physics: Physics 1A, 1B, 1C or Physics 2A, 2B, 2C and Physics Lab
(2BL or 2CL)
- Mathematics: Mathematics 10A, 10B, 10C/11 or 20A, 20B, 20C/21C
Upper-Division Requirements
- Organic Chemistry (Chemistry 140A and 140B or 141A and 141B)
- Organic Chemistry Lab (Chemistry 143A)
- Metabolic Biochemistry (BlBC 102)
- Genetics (BICD 100)
- Molecular Biology (BIMM 100)
- Molecular Basis of Human Disease (BIMM 110)
- Mammalian Physiology I (BIPN 100)
- Three courses from the following two groups, Human Physiology and
Human Disease. At least one course must be taken from each group.
Human Physiology
Nutrition (BIBC 120)
Embryos, Genes, and Development (BICD 130)
Human Reproduction and Development (BICD 134)
Immunology (BICD 140)
Endocrinology (BICD 150)
Mammalian Physiology II (BIPN 102)
Human Disease
AIDS Science and Society (BICD 136)
Topics in Human Genetics (BICD 170)
Virology (BIMM 114)
Bacteriology (BIMM 120)
Medical Microbiology (BIMM 124)
Biology of Cancer (BIMM 134)
- Two of the following lab courses: Biochemical Techniques (BIBC
103)
Signal Transduction Lab (BIBC 105) Cell Biology Lab (BICD 111) Embryology
Lab (BICD 131) Developmental Biology Lab (BICD 133) Laboratory in
Molecular Medicine (BICD 145) Recombinant DNA Techniques (BIMM 101)
Microbiology Lab (BIMM 121) Animal Physiology Lab (BIPN 105) BISP
196/199 (The second consecutive quarter of BISP 196 or 199 taken in
the same research laboratory may be substituted for one of the upper-division
lab requirements.)
- At least two other upper-division courses (each course must be
at least four units) offered by the UCSD Division of Biological Sciences.
Recommended courses include additional courses from the Human Physiology
and Human Disease lists in section 8 above and BICD 110 (Cell Biology),
BIEB 154 (Molecular Evolution), and BICD 118 (Pathways of Intracellular
Protein Trafficking and Compartmentation). Other acceptable courses
include one quarter of BISP 195 and one quarter of either BISP 196,
197, or 199. (Exception: students who use BISP 196 or 199 to satisfy
the lab requirement in section 9 above cannot use BISP 196, 197, or
199 to satisfy this requirement.)
Microbiology Major
Please refer to the Division of Biological Sciences Required
Review of Student Progress notice detailed earlier in the Division
of Biological Sciences section of this catalog.
The microbiology major is designed to prepare students for graduate
studies and for professional careers in a variety of health-related
programs. The specialization in microbiology can provide the basic background
for work in medical technology, or for further training in public health
or other health-related specialties. The program is also designed to
provide a foundation for graduate studies in microbiology, virology,
and a variety of allied fields as well as for medical and dental school.
Lower-Division Requirements
Mathematics 10A-B, and 10C or 11 or 20A-B, and 20C or 21C
Chemistry 6A-B-C, and one lab
Physics 1A-B-C, or 2A-B-C and one lab BILD 1 and 2 or BILD 1 and 3
Upper-Division Requirements
- Organic Chemistry (Chemistry 140A-B or 141A-B)
- Organic Chemistry Laboratory (Chemistry 143A)
- Metabolic Biochemistry (BIBC 102). Effective fall 2000, entering
freshmen are required to complete BIBC 102. Transfer students will
be held to the new requirements beginning fall 2002. Students entering
prior to fall 2000 may complete either Structural Biochemistry (BIBC
100) or Metabolic Biochemistry (BIBC 102). Both are recommended.
- Biochemical Techniques (BIBC 103)
- Genetics (BICD 100)
- Immunology (BICD 140)
- Molecular Biology (BIMM 100)
- Virology (BIMM 114)
- Bacteriology (BIMM 120)
- Laboratory in Microbiology (BIMM 121)
- Medical Microbiology (BIMM 124)
- Three additional upper-division biology courses (each course must
be at least four units) taken through the UCSD Division of Biological
Sciences are required. These may include no more than one quarter
of BISP 195 and one quarter of BISP 196, 197, or 199. (Subsequent
quarters of 195, 196, 197, or 199 may be applied toward college and
university requirements.) Other courses of special interest to microbiology
majors are listed below:
Cell Biology (BICD 110)
Regulation of Gene Activity in Eucaryotic Cells (BIMM 112)
Microbial Genetics (BIMM 122)
Recombinant DNA Techniques (BIMM 101)
Molecular Biology Major
Please refer to the Division of Biological Sciences Required
Review of Student Progress notice detailed earlier in the Division
of Biological Sciences section of this catalog.
The program for molecular biology is designed to provide an intensive
exposure to the theoretical concepts and experimental techniques of
molecular biology. The concepts and techniques of molecular biology
are the foundation for the studies of all aspects of biology in modern
time. A focus on molecular biology, therefore, provides an excellent
preparation for a wide range of advanced studies including basic research,
medicine, bioengineering, and biotechnology. Considerable emphasis is
placed on chemistry, biochemistry, and genetics for students enrolled
in the program. As such, it is recommended for those students who have
a particularly strong interest in this field of study.
Lower-Division Requirements
Mathematics 20A-B, and 20C or 21C
Chemistry 6A-B-C, and lab
Physics 1A-B-C or 2A-B-C, and one lab. The 2 sequence is recommended.
BILD 1 and 2 or BILD 1 and 3
Upper-Division Requirements
- Organic Chemistry (Chemistry 140A-B or 141A-B)
- Organic Chemistry Laboratory (Chemistry 143A) or Physical Chemistry
Laboratory (Chemistry 105A)
- Structural Biochemistry (BIBC 100)
- Metabolic Biochemistry (BIBC 102)
- Biochemical Techniques (BIBC 103)
- Genetics (BICD 100)
- Cell Biology (BICD 110)
- Molecular Biology (BIMM 100)
- Recombinant DNA Techniques (BIMM 101)
- Regulation of Gene Activity in Eukaryotic Cells (BIMM 112)
- Microbial Genetics (BIMM 122)
- Four additional upper-division biology courses (each course must
be at least four units) taken through the UCSD Division of Biological
Sciences are required. Attention is drawn to BICD 120, BICD 122, BICD
140, BIMM 110, and BIMM 114. Only one quarter of 196, 197, or 199
and one of BISP 195 may be used to fulfill this requirement. (Subsequent
quarters of BISP 195, 196, 197, or 199 may be applied toward college
and university requirements.)
Minor in Biological Sciences
To receive a minor from the Division of Biological Sciences, a student
must complete at least seven four-unit biology courses, including at
least five four-unit upper-division biology courses (for a total of
at least twenty-eight units of course work). Students may apply transferable
biology courses from another institution toward the lower-division requirement,
after obtaining approval from both the UCSD Division of Biological Sciences
and the students college. Upper-division courses must be taken
for letter grade. No courses taken outside of the Division of Biological
Sciences may be applied toward the biology minor (i.e., Chemistry 140A,
Psychology 106, etc.). Advanced placement biology scores of four or
five may be counted in lieu of BILD 1 and BILD 2. An advanced placement
biology score of three may be counted in lieu of BILD 10.
Secondary School Biology Teaching
UCSDs biological sciences division is committed to the education
of future biology teachers and offers an excellent preparation for teaching
biology in secondary schools. If you are interested in earning a California
teaching credential from UCSD, contact the Teacher Education Program
for information about the prerequisite and professional preparation
requirements. It is recommended that you contact TEP and the Biology
Student Affairs Office early in your academic career to help you plan
a suitable biology curriculum. If you plan to get your credential at
another institution, keep in mind that a broad education in biology
is the best preparation to become a teacher.
We suggest that students take courses in plant and animal biology,
microbiology, ecology, population biology, evolution, marine biology,
genetics, and biochemistry. Courses in cellular and molecular biology
are also advisable. After completion of BILD 1, 2, and 3, a suggested
program of upper-division courses would be: BIBC 100 or 102, BICD 100,
120, 130, BIEB 102, 150, BIPN 106, SIO 275B. This would give you as
a prospective teacher the required breadth of education.
Integrated Bachelors/Masters Degree Program
An integrated program leading to a bachelor of science degree and
a master of science degree in biology is offered to those undergraduate
students who are enrolled in any of the major programs offered by the
Division of Biological Sciences at UCSD. Qualified students are able
to obtain the M.S. degree within one year following receipt of the B.S.
degree. Students interested in applying to this program should meet
with the BS/M.S. adviser in the Biology Student Affairs Office BEFORE
the end of their junior year.
The program is open only to UCSD undergraduates. The Division of Biological
Sciences does not have financial aid available for students enrolled
in this program.
Eligibility and Enrollment
To be eligible, students must have completed the first two quarters
of their junior year in residence at UCSD and must have an overall UC
GPA of at least 3.0. Students major GPA should be at least 3.3.
Students must demonstrate excellent performance in upper-division biology
core courses during their undergraduate program to be eligible to enroll
in biology graduate core courses.
It is the responsibility of the prospective B.S./ M.S. student to
select a faculty member (from the Division of Biological Sciences) who
would be willing to serve as the students adviser and in whose
laboratory the student would complete at least twenty-four units of
research over a two-year period. The units of research which must be
completed during the students senior undergraduate year, must
be taken IN ADDITION to the requirements for the bachelors degree.
These units will count toward the requirements for the masters
degree only. Students must complete six consecutive quarters of research
to fulfill the research component of the program. Any deviation from
this plan, such as a break in enrollment for one or more quarters, will
be cause for the student to be dropped from the program.
Students who have been approved (by both the Division of Biological
Sciences and the UCSD Office of Graduate Admissions) for the program
must enroll in a Special Studies Course, BGGN 271, for each, and every,
quarter of participation in the B.S/M.S. program. Students can obtain
the appropriate course code and division stamp at the Biology Student
Affairs Office.
Research work (BGGN 271) will be credited toward the B.S./M.S. program
requirements only if it is completed during the time a student is officially
enrolled at UCSD and has paid tuition for that quarter.
Requirements for the Master of Science Degree
- Completion of six consecutive quarters of research during the senior
undergraduate year and the graduate year.
- Completion of at least thirty-six units of graduate course work
(BGGN 200-level or higher, or approved [via petition] graduate courses
offered by related departments at a similar level) during the graduate
year. The course of study must be approved by the faculty adviser.
- Twelve of the thirty-six units must be in courses other than BGGN
271 (BGGN 297 and BGGN 299 may not be used to satisfy this requirement).
- Serve as a graduate teaching assistant.
- Maintenance of a grade-point average (both overall and in the major)
of at least 3.0 for all course work, both cumulatively and for each
quarter of enrollment in the B.S./M.S. program. If the students
GPA falls below 3.0 (for either overall or in the major), he or she
will be automatically dropped from the program.
- Completion of a thesis, with an oral presentation to, and approval
of, a three-member Thesis Committee. A student may have any regular
faculty at UCSD or any adjunct faculty as their adviser and chair
of their Thesis Committee. The Thesis Committee must contain at least
two regular faculty from the Division of Biological Sciences and no
more than one adjunct faculty can serve on the committee. If an adjunct
faculty serves as chair of the Thesis Committee, one of the biology
members must serve as co-chair.
- At least three complete, separate, and consecutive quarters of
residency as a graduate student which will commence the quarter immediately
following the quarter in which the B.S. degree is awarded. (Note:
The summer session is not considered an official quarter during the
graduate year.)
- Students who have been approved for the B.S./M.S. program must
provide the Office of Graduate Admissions with a copy of their official
UCSD transcripts with the B.S. degree posted, PRIOR TO THE COMMENCEMENT
OF THE GRADUATE YEAR IN THE PROGRAM.
Non-Degree Program
The Division of Biological Sciences will accept applicants into the
non-degree program for a maximum of one year only. Qualified applicants
must have at least a 3.0 GPA in their upper-division work to be accepted.
Justification will not be made for those who fall below the GPA minmum.
Students who wish to apply to the UCSD biological sciences Ph.D. program
at a later date should not apply for this program. However, students
who have applied to graduate or medical schools elsewhere, but have
not yet been accepted, are welcome to apply.
Once accepted into this program, the student has graduate status for
the academic year. Courses may be taken on the undergraduate or graduate
level with consent of the instructor. Students will not be assigned
faculty advisers and must make their own academic plans.
The Doctoral Program
Graduate studies for a Ph.D. degree in the Division of Biological
Sciences in affiliation with the Salk Institute are oriented mainly
toward the development of the capacity for independent research and
for teaching in the biological sciences.
The requirements for entrance to graduate study in the Division of
Biological Sciences are flexible, but a strong background in mathematics,
chemistry, and physics is recommended.
Formal course work and opportunities for dissertation research include
most basic areas of experimental biology, with emphasis in the general
areas of biochemistry, biophysics, cell biology, developmental biology,
genetics, immunology, molecular biology, neurobiology, plant molecular
biology, ecology, behavior and evolution, virology, and cancer biology.
During the first year of graduate study, each student undertakes a
research project in the laboratory of each of four to six different
faculty members, and is expected to spend a major portion of his or
her academic time on this project. The laboratories are selected by
the student in consultation with the first year adviser to provide a
broad view of the research interests of the division. The student is
also expected to enroll in the first-year graduate biology sequence
which includes advanced material in genetics, developmental biology,
plant biology, neurobiology, molecular biology, cell biology, virology,
and immunology. Students are also required to complete a minimum of
twelve units of BGGN 500 (Apprentice Teaching in Biology.) A program
of further study, including seminars and courses appropriate to a students
background and interests, is arranged through consultation between the
student and the faculty. Much reliance is placed on informal instruction
through early and close association of the student with the faculty
and research staff, and through regular seminars. After becoming familiar
with the research activities of the faculty through the laboratory rotation
program, the student begins work on a thesis research problem of his
or her choice no later than the end of the first year. The student is
free to choose for the thesis adviser a regular member of the UCSD faculty
or an adjunct member of the Division of Biological Sciences faculty.
The student is required to have completed a two-part examination in
order to be admitted to candidacy for the Ph.D. degree. The purpose
of the examinations is for the student to demonstrate competence in
the field of major interest and in related fields of biology. The major
remaining requirement for the Ph.D. degree is the satisfactory completion
of a dissertation consisting of original research carried out under
the guidance of a faculty member.
Close collaboration with members of the Department of Chemistry and
Biochemistry is a vital and stimulating aspect of the biology program.
Additional strength and breadth in biology are gained by collaborating
with the Department of Marine Biology of the Scripps Institution of
Oceanography, with The Scripps Research Institute, and with the Salk
Institute for Biological Studies.
Divisional Ph.D. Time Limit Policies
Students must be advanced to candidacy by the end of four years. Total
university support cannot exceed seven years. Total registered time
at UCSD cannot exceed seven years.
Specialization in Computational Neurobiology
Students interested in computational neurobiology may apply to the
Division of Biological Sciences. Students in Biology with a Specialization
in Computational Neurobiology are supported by the Institute for Neural
Computation (INC). These young scientists are trained in the broad range
of scientific and technical skills essential to understand the computational
resources of neural systems. Students enrolled in this specialization
receive financial support through a National Science Foundation (NSF)
Integrative Graduate Education and Research Training (IGERT) award to
UCSD.
Joint Doctoral Program with San Diego State University
The Division of Biological Sciences at UCSD participates in a joint
graduate program with the Department of Biology at SDSU, primarily in
the areas of cell and molecular biology, and leading to the Ph.D. degree
in biology. Graduate student participants in the joint doctoral program
are required to spend one year enrolled at UCSD; thesis research is
carried out under the supervision of the SDSU faculty.
Information regarding admission is found in the current edition of
the San Diego State University Graduate Bulletin.
Biological Sciences, Division of
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