The Department of Ecology and Evolutionary Biology (EEB) is the home of the Biology Major. Other EEB majors include: Ecology, Behavior, & Evolution as well as Marine Biology. EEB also offers a Minor in Conservation Biology and a Specialization in Computing. Its mission is twofold: to provide new knowledge of the ecological and evolutionary processes that produce and sustain life on Earth, and to educate the next generation of scholars, professionals, and citizens for the biological, environmental and biotechnological challenges of the future.

The Department of Microbiology, Immunology, and Molecular Genetics (MIMG) aims to provide the highest quality research and education possible in the interdisciplinary fields of Microbiology, Immunology, and Molecular Genetics. Educators and students work together in MIMG to identify and address the most relevant problems in microbial pathogenesis and physiology, host cell biology and immune defense, and the host-pathogen interface.

Research in the Department of Molecular Cell and Developmental Biology (MCDB) focuses on the basic mechanisms that regulate cell differentiation and function. The MCDB department offers an undergraduate Major in MCDB, a minor in Biomedical Research, and a Ph.D. program. Graduate students are fully integrated in their research activities and participate hands-on, in the process of discovery.

Research in the Department of Integrative Biology and Physiology (IBP) is dedicated to explaining the function of complex biological systems, in cells, organs, and individuals. The recent rapid advances in molecular and cell biology and genetics, including the sequencing of numerous genomes, has provided an unprecedented opportunity to use this new information to understand how the genes interact to produce emergent phenotypes in complex systems.

The Department of Psychology employs systematic methods of inquiry to study and explain human and animal behavior, both normal and abnormal, in terms of a variety of underlying variables, including neural, physiological, and cognitive processes; developmental factors and individual differences; and social and interpersonal influences and contexts.

The Center for Society and Genetics (CSG) is an interdisciplinary unit that offers a major and a minor. CSG aims to incorporate scientists in the process of understanding ethical, legal, and societal impacts of the applications of their genetic and genomic research. CSG also aims to educate the public to understand, discuss, and make informed decisions about issues in biotechnology, genetics and genomics. In 2008, CSG launched an undergraduate Minor in Society and Genetics, and now also offers a Major in Human Biology and Society.