George Wells Beadle was an American geneticist. In 1958 he shared one-half of the Nobel Prize in Physiology or Medicine with Edward Tatum for their discovery of the role of genes in regulating biochemical events within cells. He served as the 7th president of the University of Chicago from 1961 to 1968. The Nobel Prize in Physiology or Medicine 1958, announced October 30, 1958. George Beadle (1/4), “for their discovery that genes act by regulating definite chemical events”. Edward Tatum (1/4), “for their discovery that genes act by regulating definite chemical events”. Joshua Lederberg (1/2), “for his discoveries concerning genetic recombination and the organization of the genetic material of bacteria”. George Beadle: born 1903, Wahoo, NE, USA. Edward Tatum: born 1909, Boulder, CO, USA. Joshua Lederberg: born 1925, Montclair, NJ, USA. Wiki link Wiki link Wiki link Data: the Nobel Foundation (CC0).