Dictionary of Human Evolution and Biology

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Castle, William Ernest (1867-1954)

Population geneticist at Harvard, who derived an early, incomplete formulation of what later Hardy and, independently, Weinberg, were to show was the binomial theorem. Performed classic selection experiments on hooded rats; mentor of Sewall Wright; author of Genetics and Eugenics (1916).

See Hardy-Weinberg equilibrium principle.

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