HARDY-WEINBERG LAW

[Har.dy-Wein.berg law] n [G. H. Hardy d. 1947 Eng. mathematician and W. Weinberg, 20th cent. Ger. scientist] (1950): a fundamental principle of population genetics: population gene frequencies and genotype frequencies remain constant from generation to generation if mating is random and if mutation, selection, immigration, and emigration do not occur--called also Hardy-Weinberg principle