the major force(s) causing the genetic divergence of the two isolated fruit fly populations is/are…

the major force(s) causing the genetic divergence of the two isolated fruit fly populations is/are \nmutation\nnatural selection and the variety of other species with which each population interbreeds\nthe complete lack of sexual reproduction in the two populations\nmating and gene flow between the two populations\nmutation and natural selection

the major force(s) causing the genetic divergence of the two isolated fruit fly populations is/are \nmutation\nnatural selection and the variety of other species with which each population interbreeds\nthe complete lack of sexual reproduction in the two populations\nmating and gene flow between the two populations\nmutation and natural selection

Answer

Brief Explanations:

Mutation creates new genetic variations. Natural - selection acts on these variations. In isolated populations, mutation and natural - selection drive genetic divergence as there is no gene - flow to homogenize the gene pools. Interbreeding with other species is not relevant here as the populations are isolated. Lack of sexual reproduction is incorrect as fruit - flies reproduce sexually. Mating and gene - flow between the two populations would decrease divergence, not cause it.

Answer:

E. mutation and natural selection