Dictionary of Human Evolution and Biology

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Dobzhansky, Theodozius Grigorievich

Russian-born US Drosophila geneticist and evolutionary biologist; trained initially in Russia (1918-27) with S. Chetverikov, then in Brazil; he also worked for a time (1927-33) in Morgan’s fly room at Columbia, where he studied the mechanism of sex determination in the fruit fly. His work on Genetics and the Origin of Species (1937), announced the modern synthesis. He applied the principles of genetics and biology to the hominid fossil record, and his discussion of competitive exclusion principle was influential. Dobzhansky is also noted for his development of evolutionary systematics.

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