Allele frequency

Figure 3.8 A schematic illustration of how the effects of genetic drift due to sampling error depend on allele frequencies in a population. The horizontal axis represents allele frequency and the width of the arrows represents the

pq standard error of allele frequency a = at a given

allele frequency. Larger standard errors for allele frequency are another way of saying that sampling error will cause a greater range of outcomes, equivalent to a larger effect of genetic drift.

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