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Biology

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Biology

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Cell Cycle and Division

Cell Cycle Checkpoints and Cancer

Description

The cell cycle is the set of steps a eukaryotic cell follows as it grows and divides. In somatic cells, it has two main stages: interphase and the mitotic phase. During interphase, the cell grows, carries out its basic metabolic functions, copies its DNA, and gets ready for mitotic cell division.

Transcript

细胞周期是指

整个细胞典型生命中的事件序列

包括生长

DNA复制 有时更多的生长和分裂

对于有性繁殖的生物

生命始于受精卵

随着时间的推移 原来的单细胞

以受控的方式生长和分裂

产生多细胞复合体

细胞继续这个过程

特别是在衰老过程中

维持和修复组织

相比之下 像细菌这样的单细胞生物

依靠细胞分裂

来简单地通过二分裂进行繁殖

不幸的是 当细胞分裂未经检查时

癌症产生 就会导...

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