人体细胞染色体对辐射有高度敏感性,在剂量和畸变量之间存在一定的线性关系,不仅可察觉早期放射损伤,而且可望作为一个灵敏的“生物剂量仪”。染色体畸变是生物诱变指标中比较理想的一种方法,已被广泛应用。 Human chromosomes are highly sensitive to radiation. There is a linear relationship between the dose and the amount of distortion, which can not only detect early radiation injury, but also serve as a sensitive “biological dosimeter.” Chromosome aberration is a more ideal method of biological mutagenesis, which has been widely used.