After a natural disaster, a population of 100,000 birds is reduced to just 1,000. How might this bottleneck affect genetic drift?

• A. Gene flow will increase, reducing the effects of genetic drift.
• B. Genetic drift is likely to accelerate, leading to decreased genetic variation.
• C. Genetic variation will increase due to the population bottleneck.
• D. The bottleneck will have no effect on genetic drift.

Answer: (B)