Biology
Allele Frequency
Calculate an allele frequency in a population.
Allele Frequency = Copies of Allele / Total Copies of All Alleles at the Locus
Formula Explanation
For a diploid population of N individuals, there are 2N allele copies at an autosomal locus.
Variables Explained
Copies of allele = Count of the allele; Total copies = Total allele copies at that locus.
Solved Example
In 100 diploid individuals, an allele occurs 60 times among 200 copies.
Allele frequency = 60/200 = 0.3.