遗传变异是指个体或种群之间DNA的差异[1][2]。造成遗传变异有多种因素,其中就包括突变遗传重组[3]。其他因素如有性生殖遗传漂变也有助于遗传变异[2]

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一对夫妇的后代出现了变异。出现变异的后代繁殖后,将性状传给他们的后代

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