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姐妹染色单体互换,简称SCE是染色体在DNA复制过程中,姐妹染色单体之间发生的一种对称性的交换。现在较多的学者认为SCE与DNA损伤及修复有关,且肿瘤的形成的和DNA损伤及染色体的脆性和不稳定
Sister chromatid exchange, referred to as SCE chromosomes in the DNA replication process, sister chromatid occurs between a symmetrical exchange. Now more scholars believe that SCE and DNA damage and repair, and tumor formation and DNA damage and chromosome fragility and instability