有丝分裂指数指在某一分裂组织或细胞群中，处于有丝分裂M期的细胞数占其总细胞数的百分数。
有丝分裂核碎裂指数 MKI
That is to say, the mitotic index decreased while the the extend of DNA methylation increased.
也就是说,DNA甲基化程度的增加会导致细胞有丝分裂指数的下降。
参考来源 - DNA甲基化对小麦根系早期生长发育影响的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
根尖有丝分裂指数可以作为监测环境中甲醛含量的参考指标，应用于甲醛污染的监测。
Therefore, Mitotic index can be used as a reference for monitoring the formaldehyde content in the environment. Onions can be applied to formaldehyde pollution monitoring.
随着盐酸吗啉胍处理浓度的增加，有丝分裂指数降低，而微核率和染色体畸变率均升高；
The cell mitotic index decreased when the concentration of MH increased in a certain range, however, the ratios of micronucleus and chromosome aberration could increase.
以不同浓度的污水和硫酸铝作为诱变剂，测定豌豆根尖细胞的有丝分裂指数、微核率和染色体畸变率。
With different concentrations of sewage and aluminum sulfate as a mutagen, pea root tip cells in the mitotic index, micro-rate and the rate of chromosomal aberrations are determined.
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