HELP In a species of fish, fin shape is controlled by a single gene that has only two alleles. The same species lives in two different lakes. In one lake, the population of its predators increases, and the small-finned fish are able to escape. In the other lake, the there is a more consistent current that requires for the fish to have larger fins to swim against it. Which of the following best describe the species of fish in the different lakes? (3 points)
Alleles that are adaptive in one environment can be deleterious in another due to selective pressures.
The species will eventually develop an intermediate sized fin in both populations.
The alleles of both populations will undergo directional selection to have the same allele frequencies.
The species will risk decline if they continue to differ in allele frequencies and genetic diversity. I think is A.