Because of fluctuations in the environment, such as depletion of food supply or an outbreak of disease, a population may periodically experience a rapid and marked decrease in the number of individuals, leading to a form of genetic drift. What is this form of genetic drift called?

Question

Quizplus · Accepted Answer

A genetic bottleneck occurs when a population experiences a significant reduction in size due to environmental events or human activities, leading to a decrease in genetic diversity. This is because the surviving population's gene pool is much smaller and may not be representative of the original population's genetic diversity.

Because of Fluctuations in the Environment, Such as Depletion of Food