A change in the frequency of a gene in a population over time due to entirely random factors is called __________.

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Genetic drift refers to random fluctuations in the frequency of alleles in a population over time. These fluctuations are due to random factors such as sampling error or chance events, rather than natural selection or gene flow. Admixture and gene flow refer to the movement of genes between populations, while the bottleneck effect refers to a sudden reduction in population size that can result in a loss of genetic diversity.

A Change in the Frequency of a Gene in a Population