What Is the Hardy Weinberg Law?

What Is the Hardy Weinberg Law?

The Hardy Weinberg Law states that if evolution isn't occurring, an equilibrium of allele and genotype frequencies is passed on through generations among sexually-reproduced species. This law assumes an ideal process that isn't possible but can determine if evolution is occurring.

The Hardy Weinberg law is represented by the following two equations: p + q = 1 and p^2 + 2pq + q^2 = 1. In the first equation, the "p" represents the frequency of the dominant allele, and the "q" represents the frequency of the recessive allele in the population. In the second equation, "p^2" represents the percentage of homozygous dominant individuals, and the "q^2" represents the percentage of homozygous recessive individuals. The "2pq" represents the percentage of heterozygous individuals. Additionally, there are conditions that must be met for this law to be effective.