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遗传多样性

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玉米的遗传多样性

遗传多样性又称为基因多样性(英语:genetic diversity)。同种个体间因为其生活环境的不同,经历长时间的天择突变所产生的结果。如果遗传多样性越高,则族群中可提供环境天择的基因愈多,其族群对于环境适应能力就愈强,有利于族群的生存及演化。例如人类有不同的肤色,这就是同种个体间性状的差异,而性状所表现的差异就是由基因的差异所引起的。

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遗传多样性
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