Genetic drift has a greater effect on
A)moths than on birds.
B)individuals than on populations.
C)small populations than on large populations.
D)natural selection than on gene flow.

Question

Quizplus · Accepted Answer

Genetic drift is the random fluctuation of allele frequencies in a population. It has a greater effect on small populations because there are fewer individuals and thus fewer opportunities for the alleles to be passed on to the next generation. In large populations, there is less chance for random events to significantly affect the overall gene pool. Therefore, C is the best choice.

Genetic Drift Has a Greater Effect on