After surviving a bottleneck,a population recovers to the point where it consists of as many individuals as it did prior to the bottleneck.Which of the following statements is most likely to apply to this population?
A)The postbottleneck population exhibits less genetic variation than the prebottleneck population.
B)The bottleneck subjected the population to stabilizing selection.
C)The postbottleneck population has less of a chance of going extinct than did the prebottleneck population.
D)The postbottleneck population exhibits more genetic variation than the prebottleneck population.

Question

Quizplus · Accepted Answer

During a bottleneck event, genetic variation is usually lost due to the small number of individuals that survive. This loss of genetic variation may lead to reduced fitness in the population, making it less resistant to environmental changes. Therefore, after the population recovers from the bottleneck, it is expected to exhibit less genetic variation than it did prior to the bottleneck.

After Surviving a Bottleneck,a Population Recovers to the Point Where