Which statement is correct about a bottleneck event?

Question

1. A bottleneck event increases the population of a species permanently
2. A bottleneck event decreases the gene pool of a population.
3. A bottleneck event increases the gene pool of a population.
4. A bottleneck event decreases the population of a species permanently.

Answer 1

The correct statement about a bottleneck event is:

2. A bottleneck event decreases the gene pool of a population.

A bottleneck event occurs when a population's size is significantly reduced for at least one generation, typically due to environmental events (like natural disasters) or human activities. This reduction can lead to a loss of genetic diversity, which decreases the gene pool of the population.