Question

question 5
0.5 pts
the original source of genetic variation that serves as the raw material for natural selection is
__________.
mutation
geographic isolation
random fertilization
gene flow

Explanation:

• Mutation creates new genetic variations.
• Geographic isolation affects gene flow but doesn't create new variation.
• Random fertilization reshuffles existing genes, doesn't create new ones.
• Gene flow transfers existing genes between populations, doesn't create new.

Answer:

mutation