Generally these Snips are buried in stretches of noncoding DNA and have no detectable consequence for the body.

通常情况下，这些Snips被埋没在非编码DNA链中，并不会对身体产生显著的影响。

Deep within the genetic heart of all our cells are telomeres, or repeating segments of noncoding DNA that live at the ends of the chromosomes.

在我们所有细胞的基因核心深处是端粒，即生活在染色体末端的非编码脱氧核糖核酸的重复片段。

And I discovered that telomeres consisted of special segments of noncoding DNA right at the very ends of chromosomes.

我发现端粒由位于染色体末端的特殊非编码 DNA 片段组成。