Answer:
Hardy Weinberg equilibrium states that in a population the amount of genetic variation remains constant from one generation to another generation in the absence of evolutionary disturbances.
They Hardy-Weinberg equation is:
p² +2pq + q² = 1
p = dominant alleles frequency (A)
q = recessive alleles frequency (a)
p² = dominant homozygous genotype frequency (AA)
q² = recessive homozygous genotype frequency (aa)
2pq = heterozygous genotype frequency (Aa)
p² and 2pq = dominant phenotype frequency (A)
q² = recessive phenotype frequency (a)
Note: A or a is for example in which A represent the dominant allele while a represent the recessive allele.