遺傳變異是指個體或種群之間DNA的差異[1][2]。造成遺傳變異有多種因素,其中就包括突變遺傳重組[3]。其他因素如有性生殖遺傳漂變也有助於遺傳變異[2]

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一對夫婦的後代出現了變異。出現變異的後代繁殖後,將性狀傳給他們的後代

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