Hardy-Weinberg

Hardy-Weinberg - Hardy-Weinberg Equilibrium ANTH 2: Human...

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1 Hardy-Weinberg Equilibrium ANTH 2: Human Origins Winter 2011 Hardy-Weinberg Law – Both allele and genotype frequencies will remain constant from generation to generation in a large, interbreeding population where mating is random and there is no selection, migration, or mutation. Assumptions: 1) The population is large. This means that there won’t be sampling errors in measuring allele frequency. “Sampling errors” in small populations can also lead to genetic drift . 2) There is no selection, all genotypes have an equal chance of surviving and reproducing, i.e. all genotypes have equal fitness . 3) Mating is random among individuals in the population. 4) Other factors that can cause changes in allele frequency, such as mutation and migration, are absent or rare enough to be ignored. How realistic is it to assume that all these assumptions will be met in a natural population? Calculating Allele and Genotype Frequencies: Autosomal gene with two alleles, A and a A = p a = q p and
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Hardy-Weinberg - Hardy-Weinberg Equilibrium ANTH 2: Human...

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