Which statement is correct about a bottleneck event? (1 point)
Responses
A bottleneck event decreases the gene pool of a population.
A bottleneck event decreases the gene pool of a population.
A bottleneck event decreases the population of a species permanently.
A bottleneck event decreases the population of a species permanently.
A bottleneck event increases the population of a species permanently.
A bottleneck event increases the population of a species permanently.
A bottleneck event increases the gene pool of a population.
The correct statement about a bottleneck event is: A bottleneck event decreases the gene pool of a population.
The correct statement about a bottleneck event is: A bottleneck event decreases the gene pool of a population.
To understand why this statement is correct, let's first define what a bottleneck event is. A bottleneck event refers to a sudden reduction in the size of a population due to a catastrophic event, such as a natural disaster or disease outbreak. This event leads to a significant decrease in the number of individuals in the population.
During a bottleneck event, many individuals are eliminated from the population, resulting in the loss of genetic diversity. With fewer individuals, the genetic variation within the population decreases. This reduction in genetic diversity is what is meant by "decreasing the gene pool of a population."
It is important to note that a bottleneck event does not necessarily decrease the population of a species permanently. Over time, populations can recover from bottleneck events through natural selection, migration, or other factors. However, during the immediate aftermath of a bottleneck event, there is a noticeable decrease in the gene pool of the population.
The correct statement about a bottleneck event is:
A bottleneck event decreases the gene pool of a population.