Biology

The correct answer is: A.No mutations.

Explanation:

Exposure to UV rays can cause mutations in the DNA, which can lead to the creation of new alleles in a population. One of Hardy-Weinberg's assumptions is that there are no mutations occurring, which would maintain the genetic stability of the population. Since UV exposure can introduce mutations, this assumption is not met.

The other options are incorrect because:

B.No gene flow: Gene flow refers to the movement of alleles between populations. UV rays do not directly influence gene flow.

C.No genetic...