The mean frequencies of chromosome aberration (CA), sister chromatid exchange (SCE), and micronucleus(MN) were analysed.

静脉采血检测染色体畸变、姊妹染色单体交换（ SCE）、细胞微核的发生率。

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Purpose and methods: Single cell gel electrophoresis (SCGE), sister chromatid exchanges (SCE), chromosome aberrations are three methods to determine DNA damage and repair.

目的与方法：单细胞凝胶电泳技术(SCGE)、姐妹染色单体交换法(SCE)和染色体畸变分析法均能被用来检测dna的损伤或修复。

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Structurally, the aberrations of the chromosome-type break, chromatid break, double minute chromosome were also remarkably different (P<0.01).

在结构上，染色体型断裂、染色单体型断裂、双着丝粒、双微小体这些畸变，差异也非常显著（P<0.01）。

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