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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク General selection model ： ウィキペディア英語版 General selection model The General Selection Model (GSM) is a model of population genetics that describes how a population's allele frequencies will change when acted upon by natural selection. ==Equation== The General Selection Model applied to a single gene with two alleles (let's call them A1 and A2) is encapsulated by the equation: $\backslash Delta\; q=\backslash frac$ is the mean population relative fitness. 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 $\backslash Delta\; Q$ is proportional to the genetic variation. The mean population fitness $\backslash overline$ is a measure of the overall fitness of the population. In the GSM, the rate of change $\backslash Delta\; Q$ is inversely proportional to the mean fitness $\backslash overline$—i.e. when the population is maximally fit, no further change can occur. The remainder of the equation, $\backslash big(+\; p(W\_1\; -\; W\_0)\backslash big)$, refers to the mean effect of an allele substitution. In essence, this term quantifies what effect genetic changes will have on fitness. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「General selection model」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.