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?
the frequency of dominant alleles will slowly increase.
the gene pool of the population will remain relatively constant.
the genetic variability of the population will slowly decrease.
the frequency of dominant and recessive alleles will equalize.

Explanation:

According to the Hardy - Weinberg equilibrium principle, when a population is large, mates at random, has no migration, no mutations, and no selective pressure, the gene pool (including allele frequencies and genotype frequencies) remains relatively constant. Dominant alleles don't increase just because they are dominant (no selection pressure favoring them), genetic variability doesn't decrease (no factors like genetic drift from small population size or selection removing variants), and there's no mechanism for dominant and recessive allele frequencies to equalize specifically.

Answer:

The gene pool of the population will remain relatively constant.