Biology

The correct answer is: B.The makeup of the population's gene pool will remain virtually the same as long as these conditions hold.

Explanation:

Under the conditions you've described—no migration, a very large population, no mutations, random mating, and no selection—the population is essentially in Hardy-Weinberg equilibrium. In this state, the allele frequencies in the gene pool will remain constant from generation to generation, meaning that evolution will not occur, and the gene pool makeup will remain virtually unchanged as long as those conditions are maintained.

The other options are incorrect because:

A.The population will evolve, but much more slowly than normal: This would happen if one or more evolutionary forces were acting (such as selection or mutation), but in Hardy-Weinberg equilibrium, evolution does not occur.

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