2.Population Genetics Hardy-Weinberg Equilibrium
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The Hardy-Weinberg Law is the rudimentary law of population genetics. Hardy and Weinberg demonstrated that in a large-random mating population in the absence of factors that change the allele frequencies, strictly speaking with no selection, mutation, or migration agencies, the allele frequencies and the genotype frequencies are constant from generation to generation. This population is said to be in Hardy-Weinberg equilibrium. In the population under Hardy-Weinberg equilibrium, offspring genotype frequencies are simple functions of allele frequencies of the parent generation.