Which statement is correct about a bottleneck event?

Question

(1 point)

A bottleneck event increases the gene pool of a population.

A bottleneck event decreases the population of a species permanently.

A bottleneck event decreases the gene pool of a population

A bottleneck event increases the population of a species permanently.

Why are the gene pools of small populations reduced compared to those of larger populations?

(1 point)

inbreeding

lack of advantageous traits

bottleneck events

lack of suitable mates

A bottleneck event reduces the population of bears in one area by 80% Which statement is correct about the bears gene pool? (1 point)

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

It has temporally 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 increased, so disadvantageous balts are more likely to be passed on

Which information helps scientists determine the survival probability of a population? (1 point)

the existence of natural selection in the population

the level of genetic variation in the population

the feeding habits of an individual in the population

the number of offspring of an Individual in the population

Answer 1

1. Which statement is correct about a bottleneck event?

   • Correct Answer: A bottleneck event decreases the gene pool of a population.

2. Why are the gene pools of small populations reduced compared to those of larger populations?

   • Correct Answer: inbreeding

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

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

4. Which information helps scientists determine the survival probability of a population?

   • Correct Answer: the level of genetic variation in the population.