The influence of genetic drift on allele frequencies increases as ____.
A)gene flow increases
B)population size decreases
C)mutation rate decreases
D)the number of heterozygous loci increases
E)population size increases

Question

Quizplus · Accepted Answer

Genetic drift is the random fluctuation of allele frequencies in a population due to chance events. The smaller the population size, the greater the influence of genetic drift since chance events can have a larger impact on allele frequencies. Therefore, as population size decreases, the influence of genetic drift increases. The other choices are incorrect as they do not directly affect the influence of genetic drift on allele frequencies.

The Influence of Genetic Drift on Allele Frequencies Increases as ____