Which process increases genetic variation in a population by producing new alleles?
Answer and explanation
Correct answer: A. Mutation
- Step 1: New alleles arise only by mutation.
- Step 2: The other processes alter allele frequencies of existing alleles.
Answer
Mutation.
Why not the others: Natural selection: this changes allele frequencies but does not create alleles. Gene flow: this moves alleles between populations. Genetic drift: this changes allele frequencies by chance.
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