Which of the following processes best describes the cause of a bottleneck effect?
A) chance events that change allele frequency
B) transfer of alleles to the next generation in proportions that differ from the current generation
C) transfer of alleles in and out of a population due to movement of fertile individuals
D) drastic decrease in the size of the population

Question

Quizplus · Accepted Answer

The bottleneck effect occurs when there's a drastic decrease in the size of a population, often due to a sudden environmental change or disaster, leading to a reduction in genetic diversity as the surviving population's gene pool becomes less varied.

Which of the Following Processes Best Describes the Cause of a Bottleneck