G. W. Beadle

Stanford University

October 22, 1903 - June 9, 1989

Scientific Discipline: Genetics
Membership Type:
Member (elected 1944)

George W. Beadle was a geneticist who helped to develop the “one gene, one enzyme” hypothesis of gene regulation. Through a series of experiments, with partner Edward L. Tatum, he mutated a common mold, N. crassa, with x-rays and noted changes in specific enzymes produced for its metabolic pathway. This research allowed them to draw a direct link between genes and enzyme activity and earned him the Nobel Prize in Physiology or Medicine in 1958.

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