The distribution of alleles in a population - APEX
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Allele frequency is the frequency (proportion) of alleles in a population. It can be expressed as a percentage or a decimal.
For example, suppose a population has 10 individuals and there are two alleles (A and a) of a gene. Suppose the individuals are as follows:
4 AA individuals = 8 A alleles
4 Aa individuals = 4 A alleles and 4 a alleles
2 aa individuals = 4 a alleles
So there are (8 + 4) = 12 A alleles in the population and (4 + 4) = 8 a alleles in the population.
The frequency of A alleles is therefore 12/20 = 0.6 or 60%.
The frequency of a alleles is 8/20 = 0.4 or 40%.
(Notice that the total number of alleles equals 1.0 or 100%.)
The allele frequency is the proportion of a specific allele in a population's gene pool. It represents how common a particular allele is within a population relative to other alleles at the same gene locus. It is often expressed as a decimal or percentage.
its not anything.
Minor allele frequency (MAF) is the frequency at which the less common allele appears in a particular population. Major allele frequency (MAF) is the frequency at which the more common allele appears in a particular population. They are useful measures for studying genetic variation within populations.
The frequency of an allele in a gene pool is determined by counting the number of copies of that allele in a population. This frequency can change through evolutionary processes such as genetic drift, natural selection, mutation, and gene flow. Tracking allele frequencies helps scientists study population genetics and evolutionary dynamics.
Yes, the ratios of genotypes for a specific trait can change if allele frequency changes.
Allele frequency is stable.(Apex)