Lecture, three hours; discussion, one hour. Requisites: Chemistry 14A or 20A, 14C or 30A, Life Sciences 7A, 7B, 7C, 23L. Genetics in most diverse and inclusive of biological sciences. Fields as divergent as medicine and evolution require understanding of fundamental concepts of heredity as they apply to individuals and populations. Many important social questions require understanding of genetics for informed decision making. Study of foundations of genetics at level expected of all biologists. Students learn basic terminology of field and physical and biochemical basis of various modes of heredity. Students gain understanding of some social implications of various aspects of genetics, and tools necessary to form informed opinions on these issues. Letter grading.