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有丝分裂既是生物学的核心知识,也是高考的重要考点之一,近几年的高考试题或大型考试中常考查此部分知识。有丝分裂的重要意义是亲代细胞的染色体经过复制(实质为DNA的复制)以后,精确地平均分配到两个子细胞中去。由于染色体上有遗传物质DNA,因而在生物的亲代和子代之间保持了遗传性状的稳定性。可见,细胞的有丝分裂对于生物的遗传有着重要意义。
Mitosis is not only the core knowledge of biology, but also one of the important entrance examination, in recent years, college entrance examination exams or large exam often check this part of the knowledge. The significance of mitosis is that the chromosomes of the parental cells are precisely divided equally between the two daughter cells after they are replicated (essentially DNA replication). Due to the chromosomal genetic material DNA, thus maintaining the stability of genetic traits between the parents and offspring of the organism. Can be seen that the cell mitosis for biological genetic has important significance.