英语词汇“frequency-dependent selection”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	frequency-dependent selection
释义	frequency-dependent selection frequency-dependent selection [¦frē·kwən·sē di¦pen·dənt si′lek·shən] (evolution) A type of natural selection that decreases the frequency of more common phenotypes in a population and increases the frequency of less common phenotypes. frequency-dependent selection frequency-dependent selection any SELECTION in which the FITNESS of genotypes is directly related to the proportions of the various PHENOTYPES present in a population, so that the frequency of the more common types is decreased and the less common types is increased. Such selection pressure often produces a stable GENETIC POLYMORPHISM and when it involves predation is referred to as APOSTATIC SELECTION.
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