Question

question 3 1 pts gene flow occurs as a result of mutations in one population but not in another. as a result of genetic drift. when an individual migrates between two otherwise isolated populations of a species. when individuals within a population interbreed.

Explanation:

• Mutation (first option) is genetic change, not gene flow.
• Genetic drift (second) is random allele change, not gene flow.
• Gene flow involves transfer via migration between populations (third option matches).
• Interbreeding within a population (fourth) is not gene flow between populations.

Answer:

when an individual migrates between two otherwise isolated populations of a species.