allele frequency

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allele frequency

A term used in population genetics for the number of copies of a particular allele divided by the number of copies of all alleles at that specific genetic locus in a population of interest. Allele frequency is a measure of a population’s genetic diversity: the higher the allele frequency, the greater the population’s consanguinity.
Allele frequencyclick for a larger image
Fig. 23 Allele frequency . Calculation of allele frequency from genotype frequency.

allele frequency

or

gene frequency

the proportion of a particular ALLELE of a gene in a population, relative to other alleles of the same gene. For example, if a gene has two alleles, A and a , and the frequency of A is 0.6, then the frequency of a will be 1.0 - 0.6 = 0.4. The allele frequency can be calculated from the GENOTYPE FREQUENCY; See Fig. 23 .
References in periodicals archive ?
Potential findings that socially identifiable ethnic groups carry a higher frequency of an allele potentially contributing to greater susceptibility to a particular exposure found in the workplace may lead to attempts by employers of businesses with that exposure to use race as a proxy for increased susceptibility and to attempt to exclude members of that group from certain jobs, ostensibly based on a desire to protect that group from that exposure.

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