When a natural disaster kills off a large proportion of the population, resulting in a severe reduction in the gene pool, it is called

Question

Quizplus · Accepted Answer

The situation described in the question is the bottleneck effect, where a significant event such as a natural disaster significantly reduces the size of a population, resulting in a reduced gene pool. Natural selection, directional selection, and gene flow all impact the gene pool in different ways but are not specific to this scenario. The founder effect occurs when a small group of individuals establishes a new population, which is not the case in this scenario.

When a Natural Disaster Kills Off a Large Proportion of the Population