分裂指数指指的细胞群体中分裂细胞所占的百分比，分裂指数测定可以用盖片培养法，也可直接在小平皿中进行。细胞分裂指数也是衡量洋葱根尖细胞分裂状况的指标之一。
对SNP处理的水稻初生根根尖细胞进行细胞分裂相统计，结果表明：随SNP浓度的增大，细胞分裂指数呈下降趋势；
It was demonstrated that the cell cycle indexes were decreased as long as the concentrations of SNP were increased after collecting the cell division phase of the primary root-tip cells;
应用流式细胞计测定分析了50例腮腺癌、36例良性涎腺肿瘤和5例正常延腺细胞核DNA含量，并探讨DNA指数（DI）、细胞分裂增殖指数（PI）与腮腺癌恶性度、生物学行为和预后等的关系。
Using flow-cytometry, the DNA content of the cells in 5 samples of normal salivary tissues, 36 cases of benign salivary tumors and 50 cases of parotid carcinoma was analysed.
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