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Genotype frequency
From Wikipedia, the free encyclopedia
Genetic variation in populations can be analyzed and quantified by the frequency of alleles. Two fundamental calculations are central to population genetics: allele frequencies and genotype frequencies.[1] Genotype frequency in a population is the number of individuals with a given genotype divided by the total number of individuals in the population.[2] In population genetics, the genotype frequency is the frequency or proportion (i.e., 0 < f < 1) of genotypes in a population.
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Although allele and genotype frequencies are related, it is important to clearly distinguish them.
Genotype frequency may also be used in the future (for "genomic profiling") to predict someone's having a disease[3] or even a birth defect.[4] It can also be used to determine ethnic diversity.
Genotype frequencies may be represented by a De Finetti diagram.