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- 3.12.1980 (Creation)
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Extent: 2 copies
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Black and white photograph of Sewall Wright in London for the Darwin Medal of the Royal Society. Taken at the Imperial Cancer Research Fund where he gave a lecture on cattle breeding and faster evolution in isolated populations.
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Admin History: Sewall Green Wright (December 21, 1889 – March 3, 1988) was an American geneticist known for his influential work on evolutionary theory and also for his work on path analysis. He was a founder of population genetics alongside Ronald Fisher and J.B.S. Haldane, which was a major step in the development of the modern evolutionary synthesis combining genetics with evolution. He discovered the inbreeding coefficient and methods of computing it in pedigree animals. He extended this work to populations, computing the amount of inbreeding between members of populations as a result of random genetic drift, and along with Fisher he pioneered methods for computing the distribution of gene frequencies among populations as a result of the interaction of natural selection, mutation, migration and genetic drift. Wright also made major contributions to mammalian and biochemical genetics.