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Gene frequency


Gene frequency. The percentage of a given allele in a population of organisms. See Allele.
Gene insertion. The addition of one or more copies of a normal gene into a defective chromosome.
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Often called gene frequency. A measure of how common an allele is in a population; the proportion of all alleles at one gene locus that are of one specific type in a population.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
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Gene frequency. The percentage of a given allele in a population of organisms. See Allele. Gene insertion. The addition of one or more copies of a normal gene into a defective chromosome. Gene linkage.
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"The major tenets of the evolutionary synthesis, then, were that populations contain genetic variation that arises by random (ie. not adaptively directed) mutation and recombination; that populations evolve by changes in gene frequency brought about ...
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Genetic drift describes changes in gene frequency that cannot be ascribed to selective pressures, but are due instead to events that are unrelated to inherited traits.
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Studies in Sardinia and Papua New Guinea have found that the gene frequency of β-thalassaemias is related to the level of endemicity in a given population.
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founder effect Changes in gene frequency that occur when a few individuals from a parental population colonize new habitats; the change is a result of founding individuals not having a representative sample of the parental population's genes.
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stimates phylogenies from gene frequency data by maximum likelihood under a model in which all divergence is due to genetic drift in the absence of new mutations ( ...
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This outcome is similar to the operation of genetic drift in neutral alleles of nuclear genes: in due course a given allele reaches a gene frequency of 100% or disappears entirely [Link to discussion].
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