A. The phenotype frequency does not change
Hardy-Weinberg law says when there is no migration, mutation, or selection allele and genotype frequency remains constant.
Example: A population in Hardy-Weinberg equilibrium
This population has 2 alleles (A and a) at a locus p and q with a frequency of p2, 2pq and q2. The allele frequency and genotype of this population will remain unchanged because they are in equilibrium.
Conditions guiding the assumptions include,
- there must be an absence of migration, selection, and mutation
- the population must be Random
- the population must be large