Explanation:
In population genetics, genotypic frequency is the frequency or proportion (that is, 0 <f <1) of genotypes in a population.
Thus it can be denoted:
{\ displaystyle f (\ mathbf {AA})} {\ displaystyle f (\ mathbf {AA})}
Compare with allelic frequency.
Hardy-Weinberg's law predicts genotypic frequencies from allelic frequencies under certain conditions, in which case:
{\ displaystyle f (\ mathbf {AA}) = p ^ {2}} {\ displaystyle f (\ mathbf {AA}) = p ^ {2}}
{\ displaystyle f (\ mathbf {Aa}) = 2pq} {\ displaystyle f (\ mathbf {Aa}) = 2pq}
{\ displaystyle f (\ mathbf {aa}) = q ^ {2}} {\ displaystyle f (\ mathbf {aa}) = q ^ {2}}
Genotypic frequencies can be represented by a De Finetti diagram.