There's nothing in biology per se that rules out cell division.

从生物学本身有事物会阻止细胞分裂。

Crucially, these changes are generally passed on to the daughter cells produced when a cell divides, and are thus perpetuated throughout an animal's life.

至关重要的一点是，这些变化一般在细胞分裂的同时传递给子细胞，因此这些变化将贯穿动物的一生。

The moon was around before the first cells divided.

在第一个细胞分裂前，月亮这颗卫星就已经存在。

Many have even worse deficits. Moreover, these deficits tend to get worse with time, because when human hair cells die, they're not replaced by cell division.

有些人的听力缺陷更加严重，甚至还会随着时间而进一步恶化，因为当人体的毛细胞凋亡后，它们不会通过细胞分裂得到补充。

Shortening with each cell division, they help determine how fast a cell ages.

随着细胞分裂的缩短，它们有助于确定细胞衰老的速度。

Every cell division carries a risk of creating errors and mutations.

每个细胞分裂都有产生错误和突变的风险。

Mitosis produces identical copies of cells and is how most of our cells divide.

有丝分裂产生相同的细胞，这是我们大多数细胞分裂的方式。

Osteosarcomas often form in the metaphysis where there's a lot of cell division occurring.

骨肉瘤常形成于干骺端，表现为大量细胞分裂。

So together there's uncontrolled cell division which can give rise to a tumor.

前述二者共同作用下，会导致细胞分裂不受控制，进而可能产生肿瘤。

I'm Paul Nurse, and I've spent much of my working life thinking about DNA, in particular how it's copied and distributed inside cells every time they divide.

我是保罗·纳斯，我的大部分工作时间都在研 DNA，是每次细胞分裂时它都如何在细胞内复制和分布。

In FAS, ethanol interferes with cell division and proliferation, cell growth and differentiation and with the migration of mature cells to their final location in the developing embryo which affects the development of various fetal tissues, including the brain.

在FAS中，乙醇会干扰细胞分裂、增殖，影响细胞生长和分化，并且在胚胎发育的过程中，妨碍成熟细胞迁移到它们最终的部位，这会影响胎儿各种组织的发育，中包括大脑。

That's because cells need to divide to replace old or dysfunctional cells, but each time they replicate, they lose a little bit of DNA from the end of each chromosome.

因为通常细胞需要通过分裂实现更新衰老或是淘汰无用的细胞，但是每次细胞分裂时，染色体都会损失掉一部分基因信息，一般说这无关紧要。

Typically these are mutations in proto-oncogenes which results in a promotion of cell division, or mutations in tumor suppressor genes which results in a loss of inhibition of cell division.

通常，这些突变是原癌基因突变，会促进细胞分裂；或是抑癌基因突变，导致细胞分裂的正常抑制被解除。

A genome map showed that Thiomargarita magnifica has lost some genes needed for cell division and has more than the usual number of copies of genes responsible for cell lengthening.

基因图谱显示，华丽硫珠菌已经失去了一些细胞分裂所需的基因，拥有了比通常数量更多的负责细胞变长的基因副本。

Once we have a growing plant on our hands, Cytokinins stimulate cell division, which allows the plant to build new organs like leaves, stems, and roots.

一旦我们手上有了一棵正在生长的植物，细胞分裂素就会刺激细胞分裂，从而使植物长出新的器官，比如叶子、茎和根。

It is not possible to be sure, given the length of time involved, that they have undergone no growth and cell division whatsoever.

鉴于所涉及时间的长短，无法肯定它们是否经历过任何生长和细胞分裂。

They use drugs to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing.

他们用药物阻止癌细胞的生长，要么杀死细胞要么阻止细胞分裂。

Over long periods of sustained stress, cortisol prevents certain immune cells from dividing so that they can tackle a pathogen, especially viruses.

在长时间的持续压力下，皮质醇会阻止某些免疫细胞分裂，从而使它们能够对付病原体，是病毒。

The BCL1 gene encodes the protein cyclin D1, which stimulates cell growth, so once again the translocation results in increased cell division.

BCL1基因编码细胞周期蛋白D1，刺激细胞生长，所以易位导致细胞分裂加速。

Even simple bacteria like E. Coli make about 50 times their body weight in ATP for every cell division.

即使是简单的细菌（如大肠杆菌），每次细胞分裂所产生的ATP重量也约为体重的50倍。