Question

What evidence supports the claim that mutations are the main source of new genetic variation in a population? (1 point)

Meiosis rearranges existing alleles but does not create brand new ones.

Natural selection acts on existing variation rather than creating it.

Genetic drift only changes the frequency of alleles already in the population.

Mutations are the only process that can create completely new alleles.

Answer 1

All four statements support that claim. Meiosis only reshuffles existing alleles, natural selection and genetic drift change frequencies of alleles already present, and mutations are the only process that creates entirely new alleles.