Telomerase is known to protect telomeres which stop the string of DNA unravelling much like the plastic tips at the ends of shoelaces stop fraying.
正如人们所了解的，端粒酶因其能够保护端粒，从而阻止DNA链的分离，就像鞋带末端的塑料能防止其受到磨损。
On 11 December 1951, Wilkins wrote an official letter to Crick requesting the Cambridge team stop working on DNA.
1951年12月11日，威尔金斯给克里克写了一份公函，要求剑桥小组停止研究DNA。
When they're behaving normally, cells know when to stop replicating based on instructions encoded in their DNA.
当它们行为正常时，细胞根据DNA编码的指令知道何时停止复制。
When these were injected into yeast, the DNA sequence protected the chromosomes when they were copied, just as the plastic tips at the ends of shoelaces stop them from fraying.
当这些微型染色体注入到酵母细胞中后，在细胞分裂时，这种CCCCAA的DNA序列在复制时对染色体起到了保护作用，就像鞋带末端的塑料帽对鞋带起到的防磨损作用。
DNA a decides what we are, but not who we are. What we are never changed, but who we are never stop changing.
DNA决定了我们是什么，但不能决定我们将成为什么人。我们是什么不会改变，但我们能成为什么则在一直变化着。
A genetic flaw that's often found in a type of brain tumour may stop the cells from fixing damage to their DNA, findings from a new US study suggest.
美国的一项新研究结果揭示，在一种脑肿瘤中经常发现的基因缺陷可能阻止细胞对DNA的损伤。
But after many replications, the telomeres get trimmed so short that the cells can't afford to lose any more DNA, and they stop replicating.
不过多次复制后端粒越来越短细胞无法损失更多dna因而停止复制。
Therapeutically, it may mean that preventing oxidative stress may stop epigenetic changes in DNA.
在治疗学上它意味着预防氧化应激可以中止DNA的表观遗传学改变。
I foresaw a year in which the world of management would suddenly become sensible - in which companies would stop brainstorming about their corporate DNA and concentrate on making money instead.
我预言这一年内管理界将突然清醒起来：企业将不再讨论诸如“公司DNA之类的说法，而是集中精力去赚钱。”
I foresaw a year in which the world of management would suddenly become sensible - in which companies would stop brainstorming about their corporate DNA and concentrate on making money instead.
我预言这一年内管理界将突然清醒起来：企业将不再讨论诸如“公司DNA之类的说法，而是集中精力去赚钱。”
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