George Wells Beadle (1903-1989)
نویسنده
چکیده
George Wells Beadle [3] studied corn, fruit flies, and funguses in the US during the twentieth century. These studies helped Beadle earn the 1958 Nobel Prize in Physiology or Medicine [4]. Beadle shared the prize with Edward Tatum for their discovery that genes [5] help regulate chemical processes in and between cells. This finding, initially termed the one gene-one enzyme hypothesis, helped scientists develop new techniques to study genes [5] and DNA as molecules, not just as units of heredity between generations of organisms. By inducing mutations in organisms while they were in different embryonic stages, Beadle's work on Drosophila [6] and Neurospora [7] led to the analysis of the cell cycle and embryonic development processes.
منابع مشابه
"Genetic Control of Biochemical Reactions in Neurospora" (1941), by George W. Beadle and Edward L. Tatum
George Wells Beadle [7] and Edward Lawrie Tatum's 1941 article "Genetic Control of Biochemical Reactions in Neurospora [8]" detailed their experiments on how genes [9] regulated chemical reactions, and how the chemical reactions in turn affected development in the organism. Beadle and Tatum experimented on Neurospora, a type of bread mold, and they concluded that mutations to genes [9] affected...
متن کاملBoris Ephrussi (1901-1979)
Boris Ephrussi studied fruit flies, yeast, and mouse [3] genetics and development while working in France and the US during the twentieth century. In yeast, Ephrussi studied how mutations in the cytoplasm persisted across generations. In mice he studied the genetics of hybrids and the development of cancer. Working with George Wells Beadle [4] on the causes of different eye colors in fruit flie...
متن کاملBeadle and Ephrussi's Transplantation Technique for Drosophila
Boris Ephrussi and George Wells Beadle [5] developed a transplantation technique on flies, Drosophila melanogaster [6], which they described in their 1936 article "A Technique of Transplantation for Drosophila [4]." The technique of injecting a tissue from one fly larva into another fly larva, using a micropipette, to grow that tissue in the second larvae, was a means for investigating developm...
متن کاملJames F . Crow and William F . Dove A Centennial : George W . Beadle , 1903 – 1989
GEORGE BEADLE was a quadruple-threat man— Keim, stayed on for several additional months. At that time he was interested in ecology, and his first publicascientist, teacher, administrator, and public citizen. He excelled in each. Furthermore, he did what tion dealt with pasture grasses (Beadle 1927). He loved the rural life and originally expected to be a farmer. He very few geneticists did in h...
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