Question

the movement of alleles from one population to another is called
a. founder effect.
b. microevolution
c. genetic drift.
d. gene flow.

Explanation:

• Option A: The founder effect is a type of genetic drift that occurs when a small group starts a new population, not the movement of alleles between populations.
• Option B: Microevolution is the change in allele frequencies in a population over time, which is a broader concept and not specifically about allele movement between populations.
• Option C: Genetic drift is the random change in allele frequencies, often due to chance events, not the movement of alleles between populations.
• Option D: Gene flow is defined as the movement of alleles from one population to another, which matches the description in the question.

Answer:

D. gene flow.