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Biology is a dynamic science that helps you gain a better understanding of living organisms and the ways they interact with our environment. SLU’s biology program provides a foundation for careers in medicine and the life sciences, as well as post-graduate studies.

Major in Biology

Saint Louis University's Department of Biology offers both a Bachelor of Arts and a Bachelor of Science degree . The Bachelor of Arts degree in biology provides flexibility in selecting upper-level courses and is favored by students interested in double majors. The Bachelor of Science degree in biology allows you to choose from five concentrations of study to focus on specific sub-disciplinary areas:

Biological Science
This concentration provides students with a strong foundation in biology and prepares you for entry-level employment in the life sciences, health professions, K-12 education and graduate school.

Biological Chemistry and Molecular Biology
This concentration focuses on the latest advances in biochemistry, genomics, and molecular and cell biology. It is designed for students interested in careers involving biomedical research or biotechnology.

Cell Biology and Physiology
This concentration provides students with a strong foundation in the structure and function of organ systems and the tissues that comprise them. It is a good choice for students planning careers in medicine, pharmacology or health care.

Ecology, Evolution and Conservation
This concentration is designed for students interested in various aspects of organismal biology. It is a good choice for students preparing for graduate study or planning for a career as a research biologist or wildlife specialist.

Plant Science
This concentration is designed for students interested in various aspects of plant biology and prepares you for careers in agricultural industries, botanical research institutes and advanced training in graduate degree programs.

Biology majors at SLU can enroll in courses that provide credit for structured internships through collaborations with a variety of local organizations including the Missouri Botanical Garden, Saint Louis Zoo, Sigma Aldrich, Monsanto and firms in the growing biotechnology field.

SLU's Department of Biology also has a field station located in the Missouri Ozarks for research and teaching that provides unique opportunities for you to explore ecology and conservation biology through hands-on experiments and undergraduate research.

Highlighted Courses
  • BIOL 1240-1260: Principles of Biology I and II
  • BIOL 3010: Evolutionary Biology
  • BIOL 3020: Biochemistry & Molecular Biology
  • BIOL 3030: Principles of Genetics
  • BIOL 3040: Cell Structure & Function


B.A. Degree Requirements

B.S. Degree Requirements

Minor Requirements

Internships and Careers

Advanced undergraduate students with good academic records are encouraged to apply for positions as teaching or learning assistants. In addition to a stipend, students gain teaching experience and the opportunity to help others become interested in the field of biology.

SLU’s biology major develops strong critical thinking and problem solving skills that provide an excellent preparation for professional schools, such as:

  • Medical school
  • Veterinary science
  • Dental school
  • Optometry school

The skills you gain as a biology major can also open the door to a wide variety of career options in areas such as health care, biotechnology, environmental management, conservation, education and pharmaceuticals.


Our faculty — all of whom hold the highest degrees in their field — are active in research. Funded by grants from federal and local agencies, they conduct studies in diverse subdisciplines within biology, including molecular biology, cell biology, and ecology and evolutionary biology. They also provide courses that engage and challenge students by promoting active learning.

Tuition and Fees

Saint Louis University takes pride in being one of Barron's Best Buys in College Education and Kiplinger's Best Values in Private Colleges.

For information regarding the upcoming academic year’s tuition rate, fees and financial aid, visit SLU Financial Services.

2018-2019 Tuition and Fees
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Minor in Biology

SLU’s minor in biology requires eight hours of introductory biology (BIOL 1240/1245 and BIOL 1260/1265 or the equivalent), eight hours of introductory chemistry(CHEM 1630/1650 and CHEM 1640/1660) and 12 hours of upper-level biology courses.

BIOL 4960 and BIOL 4980 do not count towards the 12 hours of upper division biology courses.

In accordance with the College of Arts and Sciences graduation requirements, you must obtain at least a 2.00 overall grade point average in all chemistry and biology courses that are required for the minor in Biology.

Student Organizations

Join an Honor Society

Groups such as Beta Beta Beta (the biology honorary society) and Alpha Epsilon Delta (the pre-professional honor society) are social and academic organizations that can help further your interest in biology while exposing you to its relationship with other scientific disciplines.