Ethan Bier’s laboratory at the University of California, San Diego studies the genetic control of development in Drosophila, focusing on how morphogen gradients establish cell fates along the dorsal-ventral axis and on how sharp lines form between adjacent territories of cells. His group is also interested in using fruit flies to study the mechanistic basis for human disease gene action. Dr. Bier received his undergraduate training at the University of California, San Diego, pursued his graduate work with Dr. Alan Maxam at Harvard Medical School, and then his postdoctoral studies with Drs. Lily and Yuh-Nung Jan at the University of California, San Francisco