A bottleneck event reduces the population of bears in one area by 80%. Which statement is correct about the bears’ gene pool? (1 point)
Responses
It has temporarily increased, so disadvantageous traits are less likely to be passed on.
It has temporarily increased, so disadvantageous traits are less likely to be passed on.
It has temporarily decreased, so disadvantageous traits are less likely to be passed on.
It has temporarily decreased, so disadvantageous traits are less likely to be passed on.
It has temporarily decreased, so disadvantageous traits are more likely to be passed on.
It has temporarily decreased, so disadvantageous traits are more likely to be passed on.
It has temporarily increased, so disadvantageous traits are more likely to be passed on.
1 answer
The correct statement is:
It has temporarily decreased, so disadvantageous traits are more likely to be passed on.
A bottleneck event (like a significant reduction in population) typically leads to a decrease in genetic diversity, which can result in a smaller gene pool. This can make the population more susceptible to the effects of genetic drift, and disadvantageous traits may be more likely to persist in the population because there are fewer individuals to select against those traits.
