Question

Answer all questions
1. Whcih statement is correct about a bottleneck event?
A. a bottleneck event decreases the population of a species permanetly.
B. A bottleneck event increases the gene pool of a population
C. a bottle neck event increases the population of a species permanetly
D. a bottleneck event decreases the gene pool of a population
2. Why are gene pools of small populations reduced compared to those of larger populations?
A. inbreeding
b. bottleneck events
c. lack of advantageous traits
d. lack of suitable mates
3. Which information helps scientists determine the survival probability of a population?
A. the level of genetic variation in the population
B. the number of offspring of an indivual in the population
C. the exsistence of naturalm selection in the population
D. the feeding habits of an indovusal in the population

Answer 1

Here are the answers to your questions:

1. **Which statement is correct about a bottleneck event?**
- **D. a bottleneck event decreases the gene pool of a population.**
- A bottleneck event typically results in the loss of genetic diversity, as only a small number of individuals contribute to the future generations.

2. **Why are gene pools of small populations reduced compared to those of larger populations?**
- **A. inbreeding**
- In small populations, inbreeding is more likely to occur, which reduces genetic diversity and can lead to a decrease in the overall gene pool.

3. **Which information helps scientists determine the survival probability of a population?**
- **A. the level of genetic variation in the population**
- Higher genetic variation within a population generally increases its chances of survival, as it provides more potential for adaptation to changing environments.