Professor Roth came to the faculty from Berkeley in 1976 because of the opportunities the university presented to integrate undergraduate teaching and research. He has subsequently set a standard for excellence within the Department of Biology. He is internationally distinguished in genetics research, and has taught an elementary genetics course for many years, which is regarded as a showpiece. He took part in a course in advanced bacterial genetics and genetic engineering at the Cold Spring Harbor Laboratory that attracted a wide variety of students from across the country. He was instrumental in developing academic collaboration between the College of Science and the School of Medicine, leading to the establishment of a combined Graduate Program in Molecular Biology, which is now a national model.