Application to the Biology Major is through one of the two departments, with students selecting a formal Concentration. Refer to the Concentration listing in the Catalog for specific information and requirements. The Department of Integrative Biology is committed to train the next generation of graduate students to prepare them for professional success in the biological sciences. Our program of graduate study is designed to foster the development of technical and analytical skills used in existing and emerging fields of discovery. The Department of Integrative Biology emphasizes learning and teaching about the interactions, across all scales, among humans and other diverse organisms in a range of environments. These interactions mediate the resilience of natural biotic systems, and enhance the sustainability of products and processes that are beneficial to ecosystems and consequently to human well-being. Thus, our mission is to create new knowledge and promote learning about ecosystem health and sustainability. The mission of the Department of Cell Biology, Microbiology and Molecular Biology (CMMB) is to prepare graduate students for professional careers in academia, government or industry in the areas of Cell Biology, Microbiology, and Molecular Biology. We pursue excellence in the following programmatic research areas: genome integrity and mechanisms of aging, bacterial pathogenesis and resistance, structural and computational biology.