Next, scientists look at tandem repeats, or the repeat of two or more nucleotides, in roughly 13 to 15 regions of a DNA sample called loci.

接下来，科学家对DNA样本中称为位点的13至15个区域的串联重复或两个以及多于两个核苷酸的重复进行观察。

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Repeat this 1,000 times with 1,000 different known strands and you can generate the sequence of 1,000 letters of DNA, says Weitz.

韦茨称，用1000条不同的已知序列重复1000次，就可以产生1000个DNA序列。

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Telomerase is RNA dependent DNA polymerase, ACTS to synthesize DNA repeat fragment of telomeres, which is associated with immortalization of cells.

端粒酶是一种RNA依赖的DNA多聚酶，可以合成端粒dna的重复片段与细胞永生化密切相关。

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Or,he said human DNA really was present in the bone, but the bone was too small or low-quality to repeat the first results.

VOA: special.2011.03.15

We don't need to really talk about all the molecular detail in order to completely describe a DNA or an RNA molecule because these structures repeat themselves.

我们在完整的描述一个DNA或RNA时,不需要说明,分子上的每一个细节,因为它们的结构都是重复的

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You can say a polymer of DNA, for example, is four bases long, that means it has four of these repeat units and they go in the sequence from 5' to 3' of .

打个比方,要描述一个由,四个核苷酸单位构成的寡聚DNA,就是说它由四个核苷酸单位构成,并且从5'端到3'端的顺序为

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Victims' rights groups argue that the earlier the DNA test, the earlier repeat criminals are put in jail.

NPR: Court Takes Up Question Of Arrestee DNA Sampling