在减数分裂过程中四分体的非姐妹染色单体之间经常�生交换.实验表明交换也可以�生在某些生物体的有丝分裂中这种现象称为有丝分裂交换.如图是某 Template




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tomski在减数分裂过程中四分体的非姐妹染色单体之间经常�生交换.实验表明交换也可以�生在某些生物体的有丝分裂中这种现象称为有丝分裂交换.如图是某 coloring