# binomial law

noun, Genetics.

## Hardy-Weinberg law

[hahr-dee-wahyn-burg] /ˈhɑr diˈwaɪn bɜrg/
noun, Genetics.
1.
a principle stating that in an infinitely large, randomly mating population in which selection, migration, and mutation do not occur, the frequencies of alleles and genotypes do not change from generation to generation.
Also called binomial law, Hardy-Weinberg distribution.
Origin of Hardy-Weinberg law
1945-1950
1945-50; named after English mathematician G. H. Hardy and German physician Wilhelm Weinberg (1862-1937), who independently formulated it
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Based on the Random House Dictionary, © Random House, Inc. 2016.
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binomial-law in Medicine

Hardy-Weinberg law Hardy-Wein·berg law (-wīn'bərg)
n.
A fundamental principle in population genetics stating that the genotype frequencies and gene frequencies of a large, randomly mating population remain constant provided immigration, mutation, and selection do not take place.

The American Heritage® Stedman's Medical Dictionary
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binomial-law in Science
 Hardy-Weinberg law   (här'dē-wīn'bûrg)    A fundamental principle in population genetics stating that the genotype frequencies and gene frequencies of a large, randomly mating population remain constant provided immigration, mutation, and selection do not take place. In the simple case of a chromosome locus with two alleles, A and a, with frequencies p and q respectively, the frequency of the homozygotic genotype AA under random mating will be p2, of heterozygotic Aa will be 2pq, and of homozygotic aa will be q2. The law is named for its formulators, British mathematician Godfrey Harold Hardy (1877-1947) and German physician Wilhelm Weinberg (1862-1937).
The American Heritage® Science Dictionary
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12
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