A bottleneck event reduces the population of bears in one area by 80%. Which statement is correct

Question

about the bears' gene pool? (1 point)
O It has temporarily increased, so disadvantageous traits are less likely to be passed on.
O It has temporarily decreased, so disadvantageous traits are more likely to be passed on.
O It has temporarily increased, so disadvantageous traits are more likely to be passed on.
O
It has temporarily decreased, so disadvantageous traits are less likely to be passed on.

Answer 1

The correct statement is:

O It has temporarily decreased, so disadvantageous traits are more likely to be passed on.

A bottleneck event significantly reduces the genetic diversity of a population. When a population is reduced dramatically, the gene pool also decreases. This can lead to an increase in the likelihood that disadvantageous traits will be passed on, as the remaining population may not represent the full range of genetic variation that was previously present.