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。
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.
为了解人类LDL受体基因内含子15的遗传背景，利用长链PCR和锚定PCR分离了LDL受体基因外显子15-内含子15-外显子16和内含于15的3’末端片段。
To understand intron 15 of human LDL receptor gene, the DNA fragments from exon 15 to exon 16 and the 3' end of intron 15 were amplified with long chain PCR and anchored PCR.
在生产线的末端，模具从完全成型的零件分离并且可被重复使用。
The tool is separated from the fully formed part at the end of the line and may be reused.
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