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General selection modelThe General Selection Model (GSM) is a model of population genetics that describes how a population's genotype will change when acted upon by natural selection. Additional recommended knowledgeEquationThe General Selection Model is encapsulated by the equation:
In words: The product of the relative frequencies, pq , is a measure of the genetic variance. The quantity pq is maximized when there is an equal frequency of each gene, when p = q. In the GSM, the rate of change ΔQ is proportional to the genetic variation. The mean population fitness is a measure of the overall fitness of the population. In the GSM, the rate of change ΔQ is inversely proportional to the mean fitness -- i.e. when the population is maximally fit, no further change can occur. The remainder of the equation, , refers to the mean effect of an allele substitution. In essence, this term quantifies what effect genetic changes will have on fitness. See alsoExternal links
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "General_selection_model". A list of authors is available in Wikipedia. |