Question

what is one similarity between genetic drift and gene flow? (1 point) they both occur in a population by chance. they both cause a change in the frequency of traits in a population. they are both caused by natural disasters, such as hurricanes. they are both caused by the migration of species.

Explanation:

1. Analyze each option:

• Option 1: Genetic drift occurs by chance, but gene flow is due to migration (not chance), so this is incorrect.
• Option 2: Genetic drift (random changes) and gene flow (migration - related transfer) both alter the frequency of traits (alleles) in a population. This is correct.
• Option 3: Genetic drift can be caused by natural disasters (bottleneck effect), but gene flow is not caused by natural disasters. So this is incorrect.
• Option 4: Gene flow is caused by migration, but genetic drift is not. So this is incorrect.

Answer:

They both cause a change in the frequency of traits in a population.