Question

In Wisconsin, a very large population of lake trout, in which individuals mate at random, experiences no migration, mutations, nor selective pressure for a number of years. Which of these is most likely to occur in the population?
a The frequency of dominant alleles will slowly increase.
b The gene pool of the population will remain relatively constant.
c The genetic variability of the population will slowly decrease.
d The frequency of dominant and recessive alleles will equalize.

Answer 1

Answer:

B. The gene pool of the population will remain relatively constant.

Explanation:

If a population is large enough and does not experience any of the evolutionary agents, the allele frequencies in its gene pool remain constant. Here, evolutionary agents are migration, mutations, natural selection, gene flow etc. which lead to changes in the gene pool of population. If the given large population experiences absence of these agents of evolution, its gene pool will remain constant over generations.

Answer 2

The gene pool of the population will remain relatively constant.