New alleles can be introduced into a population's gene pool by:_________?
Correct answer: D. Both A & C
- A. Mutation
- B. Natural selection
- C. Gene flow
- D. Both A & C
Explanation
Mutation creates new alleles, while gene flow can introduce alleles from another population. Natural selection changes the frequencies of existing alleles but does not itself create new alleles, so both A and C are correct.
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