Please consult the "Specialization Requirements" information below for required courses specific to the Microbiology Specialization of the biology major.

Program Requirements

  • Total Units Required: 58
  • Grade Requirement: All courses to be counted toward a major in biology must be taken for a letter grade if a letter grade is offered. A grade of C– or better must be earned in all of these courses.

Required Courses

BIOL 2960Principles of Biology I4
BIOL 2970Principles of Biology II4
CHEM 1601Principles of General Chemistry I3
or CHEM 1701 General Chemistry I
CHEM 1602Principles of General Chemistry II3
or CHEM 1702 General Chemistry II
CHEM 1751General Chemistry Laboratory I2
CHEM 1752General Chemistry Laboratory II2
CHEM 2561Organic Chemistry I With Lab4
or CHEM 2501
CHEM 2551
Organic Chemistry I
and Organic Chemistry Laboratory I
CHEM 2562Organic Chemistry II With Lab4
or CHEM 2502
CHEM 2552
Organic Chemistry II
and Organic Chemistry Laboratory II
PHYSICS 1740Physics I3-4
or PHYSICS 1760 Focused Physics I
PHYSICS 1741Physics I Laboratory1
PHYSICS 1742Physics II3-4
or PHYSICS 1762 Focused Physics II
PHYSICS 1743Physics II Laboratory1
MATH 1510Calculus I3
MATH 2130Calculus III3
or SDS 2020 Elementary Probability and Statistics
or SDS 3020 Elementary to Intermediate Statistics and Data Analysis
or SDS 3030 Statistics for Data Science I
Total Units40-42

Students may substitute CHEM 4010 Physical Chemistry I for CHEM 2562 Organic Chemistry II With Lab. Students who plan to take physical chemistry must take MATH 2130 Calculus III. SDS 2020 Elementary Probability and Statistics (required for the tracks in ecology and evolution and in genomics and computational biology) and MATH 2130 Calculus III are valuable, particularly for students interested in research. Students who have taken MATH 2130 Calculus III may take SDS 3020 Elementary to Intermediate Statistics and Data Analysis rather than SDS 2020 Elementary Probability and Statistics for a more advanced treatment of statistics.

At least 18 units in advanced biology courses (numbered 3000 or above) are required. These 18 units may not include the following: BIOL 3030 Human Biology, BIOL 3430 Plants, People and the EnvironmentBIOL 3990 Undergraduate TeachingBIOL 3991 Undergraduate Teaching, BIOL 4060 Introduction to Biochemistry,  BIOL 4990 Undergraduate Teaching, or BIOL 4991 Undergraduate Teaching; courses taken through WashU Continuing & Professional Studies; or more than 3 units of history-of-science courses. The following courses originating in other departments do count toward the 18 units of advance biology major credit despite external origins: PHYSICS 3354 Physics of Living Systems, PHYSICS 3324 Biophysics Laboratory, ANTHRO 4581 Principles of Human Anatomy and Development, REPRSCI 5000 Human Reproductive PhysiologyCHEM 4810 General Biochemistry I, CHEM 4820 General Biochemistry II, and CHEM 4833 Protein Biochemistry. Up to 6 units of independent research (BIOL 4950 Independent Research, BIOL 4951 Independent Research, BIOL 4952 Summer Independent ResearchBIOL 4953 Summer Independent Research in Neuroscience or BIOL 4954 Independent Research in Neuroscience) may be counted toward the 18 advanced biology units, and up to 3 units of BIOL 49XX seminar courses may be counted toward the 18 advanced biology units. 

Biology Area Courses

Majors are required to take at least one course from each of the following three areas:

Area A: Cellular and Molecular Biology
BIOL 3041Plant Biology and Genetic Engineering4
BIOL 3240Human Genetics3
BIOL 3340Cell Biology3
BIOL 3481Parasitology3
BIOL 3490Microbiology4
BIOL 4240Immunology4
BIOL 4242Virology3
BIOL 4345Epigenetics3
BIOL 4492Infectious Diseases: History, Pathology, and Prevention *3
BIOL 4510General Biochemistry4
BIOL 4834Bioenergy3
CHEM 4810General Biochemistry I3
CHEM 4820General Biochemistry II3
Area B: Organismal Biology 
ANTHRO 4581Principles of Human Anatomy and Development3
BIOL 3057Physiological Control Systems3
BIOL 3151Endocrinology3
BIOL 3280Principles in Human Physiology4
BIOL 3411Principles of the Nervous System3
BIOL 3421Introduction to Neuroethology3
BIOL 3422Genes, Brains, and Behavior3
BIOL 3424Great Discoveries in Neuroscience3
BIOL 4026How Plants Work: Physiology, Growth, and Metabolism3
BIOL 4030Biological Clocks3
BIOL 4072Regenerative and Stem Cell Biology3
BIOL 4381Cell-Based Tissue Engineering and Regenerative Medicine3
REPRSCI 5000Human Reproductive Physiology3
Area C: Evolution, Ecology and Population Biology
BIOL 3183A History of Genetics in the 20th Century *3
BIOL 3470Darwin and Evolutionary Controversies *3
BIOL 3494Microbes and the Environment4
BIOL 3501Evolution4
BIOL 3700Animal Behavior3
BIOL 3810Introduction to Ecology3
BIOL 4010Biology of Mammals3
BIOL 4181Population Genetics3
BIOL 4182Macroevolution3
BIOL 4183Molecular Evolution3
BIOL 4195Disease Ecology4
BIOL 4197Community Ecology3
BIOL 4720Behavioral Ecology4
*

These courses also satisfy the Arts & Sciences writing-intensive requirement.

Advanced Laboratory Courses

Majors also must take an advanced laboratory course from the following list:

BIOL 3110Vertebrate Structure Laboratory4
BIOL 3111Human and Comparative Anatomy4
BIOL 3423Behavioral Genetics Laboratory3
BIOL 3491Microbiology Laboratory3
BIOL 3492Laboratory Experiments With Eukaryotic Microbes *3
BIOL 3493Bacterial Bioprospecting and Biotechnology3
BIOL 4040Laboratory of Neurophysiology *4
BIOL 4193Experimental Ecology Laboratory *4
BIOL 4220Practical Bioinformatics4
BIOL 4342Research Explorations in Genomics4
BIOL 4343Research Explorations in Genomics (Writing-Intensive) *4
BIOL 4346Next-Gen Genetics: Merging Genetics With Genomic Insights3
BIOL 4522Laboratory in Protein Analysis, Proteomics, and Protein Structure3
BIOL 4523Molecular Methods in Enzyme Analysis3
BIOL 4525Structural Bioinformatics of Proteins (Writing Intensive) *4
CHEM 4851Biological Chemistry Laboratory4
PHYSICS 3324Biophysics Laboratory3
*

These courses also satisfy the Arts & Sciences writing-intensive requirement.

Specialization Requirements

  • Total units required (including the biology major requirements): 64

Additional requirements include BIOL 3490 Microbiology, which should be taken during the spring of the sophomore year, and either BIOL 4510 General Biochemistry or the pair of courses CHEM 4810 General Biochemistry I and CHEM 4820 General Biochemistry II. The advanced laboratory course used to fulfill major requirements must be one of the following: BIOL 3491 Microbiology Laboratory, BIOL 3492 Laboratory Experiments With Eukaryotic Microbes, or BIOL 3493 Bacterial Bioprospecting and Biotechnology. At least one of the following must be taken as an advanced microbiology elective: BIOL 3481 Parasitology, BIOL 3494 Microbes and the Environment, BIOL 4242 Virology, BIOL 4492 Infectious Diseases: History, Pathology, and Prevention, or BBS 5426 ID Gateway: Translational and Public Health Aspects of Basic Infectious Disease Research. At least one of the following must be taken as an allied elective: the pair of courses BIOL 1910 Ampersand: Phage Hunters and BIOL 1920 Ampersand: Phage Bioinformatics, BIOL 4240 Immunology, CHEM 4830 Bioorganic Chemistry, or EEPS 3230 Biogeochemistry. Students should select one course each from biology major areas B and C. BIOL 3501 Evolution is highly recommended as the course used to fulfill biology major area C. The total number of upper-level credits earned in major-track biology courses and allied electives must be at least 24 (6 units in addition to the 18 units required for the biology major).

Additional Information

Research

Research opportunities are available during the student's first and second years through BIOL 2901 Introduction to Research, BIOL 2902 Introduction to Research in Neuroscience, BIOL 2903 Summer Introduction to Research, or BIOL 2904 Summer Introduction to Research in Neuroscience; such opportunities are available during the third and fourth years through BIOL 4950 Independent Research, BIOL 4951 Independent Research, BIOL 4952 Summer Independent ResearchBIOL 4953 Summer Independent Research in Neuroscience, or BIOL 4954 Independent Research in Neuroscience. A research emphasis in the major requires at least 6 credits (two semesters) of independent research (BIOL 4950 Independent Research, BIOL 4951 Independent Research, BIOL 4952 Summer Independent ResearchBIOL 4953 Summer Independent Research in Neuroscience, or BIOL 4954 Independent Research in Neuroscience) and an approved senior thesis on this research, which is presented at the undergraduate symposium. The research emphasis is acknowledged on the degree as a research milestone.

Senior Honors

Biology majors are encouraged to work for senior honors, which require a 3.30 grade point average in biology, a 3.30 GPA in nonbiological sciences (mathematics, chemistry and physics courses), and a 3.65 overall GPA at the time of graduation. Also required are 6 units of BIOL 4950 Independent Research, BIOL 4951 Independent Research, BIOL 4952 Summer Independent ResearchBIOL 4953 Summer Independent Research in Neuroscience, or BIOL 4954 Independent Research in Neuroscience research and an approved thesis from this work, equivalent to the research emphasis described in the preceding paragraph. Students interested in senior honors should begin BIOL 4950 Independent Research, BIOL 4951 Independent Research, BIOL 4952 Summer Independent ResearchBIOL 4953 Summer Independent Research in Neuroscience, or BIOL 4954 Independent Research in Neuroscience no later than the spring of their junior year. Information about deadlines and requirements can be found on the Research Emphasis and Latin Honors page of the Biology Undergraduate Independent Research website.

The Department of Biology awards the Marian Smith Spector Prize to an undergraduate who has an excellent academic record and who submits an outstanding honors thesis; it also awards the Ralph S. Quatrano Prize to the student whose thesis shows the greatest evidence of creativity in design, research methodology, and/or broader scientific implications. The Harrison D. Stalker Award is awarded to a graduating senior whose college career is distinguished by scholarship, service, and breadth of interest. More information on these awards and prizes can be found on the Biology Undergraduate Awards webpage.

Contact Info

Phone:314-935-6860
Email:biology@wustl.edu
Website:https://biology.wustl.edu/