Which assumption must be correct for a population to be in hardy-weinberg equilibrium for a specific gene?

No genetic drift can affect allele frequencies for the gene.

Explanation:

Any condition that changes allele frequencies in the population represents a violation of the Hardy-Weinberg principle and means that the population will not be in Hardy-Weinberg equilibrium.

If a population is in Hardy-Weinberg equilibrium the allele frequencies for a specific gene remain constant. In order for this to be true, the law makes several assumptions:

1. No mechanisms of evolution occur

No mutations: the alleles remain unchanged No migration: no alleles leave or arrive to the population from the outside No natural selection: all genotypes have the same chance of survival.

2. The population is very large, almost infinite number of individuals.

3. The individuals mate randomly.