If a population of 1000 individuals has 120 aa genotypes, 460 Aa genotypes, and 420 AA genotypes, what is the allele frequency of the dominant allele (A) ?

A) 0.16
B) 0.43
C) 0.50
D) 0.65
E) 0.88

Allele Frequency

The proportion of all copies of a gene in a population that are of a given allele variant.

Dominant Allele

An allele that is always expressed when it is present, regardless of whether it is homozygous or heterozygous. Compare with recessive allele.

Aa Genotypes

A term referring to individuals with a heterozygous genotype, possessing two different alleles (A and a) at a single genetic locus.