Why are related individuals more similar than unrelated individuals and what is the basis for heritable traits? From Mendel's discoveries of the patterns of genetic inheritance, to the study of transmissible hereditary factors, genetics is central to understanding the biological sciences. Topics include molecular genetics and genetic engineering; Mendelian genetics and mapping; control of gene expression; cytogenetics; epigenetics and non-Mendelian genetics; and population and quantitative genetics. Examples are taken from a wide variety of organisms, including viruses, bacteria, plants, fungi, insects, and humans. Not open to students with credit in BIOL 350. Prerequisite: CHEM 135 or CHEM 175 or CHEM 195 and CHEM 196, with a grade of C- or higher and BIOL 150 or BIOL 151 with a grade of C- or higher; or consent of instructor.