A bottleneck event reduces the population of bears in one area by 80%. Which statement is correct about the bears' gene pool?

Question

(1 point)
• It has temporarily decreased, so disadvantageous traits are more likely to be passed on
• It has temporarily decreased, so disadvantageous traits are less likely to be passed on.
• It has temporarily increased, so disadvantageous traits are more likely to be passed on.
• It has temporarily increased, so disadvantageous traits are less likely to be passed on.

Answer 1

The correct statement about the bears' gene pool following a bottleneck event that reduces their population by 80% is:

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

A bottleneck event significantly reduces genetic diversity because only a small number of individuals contribute to the next generation. This can lead to a higher frequency of disadvantageous traits since the gene pool is limited and may not accurately reflect the overall genetic diversity that was present before the bottleneck.