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Species with similar DNA sequences for these genes are generally more closely related to each other than to species with less-similar DNA sequences.

与 DNA 序列不太相似的物种相比，这些基因的 DNA 序列相似的物种之间的关系通常更密切。

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They hope studying these genes more closely could help in development of new treatments for the disease,and possibly a cure.

VOA: special.2010.06.15

And one bit of evidence that these genes are implicated is that some unfortunate people have point mutations in these genes.

证明这些基因起作用的一些证据,是这些基因会在某些不幸的人身上,发生点突变

耶鲁公开课 - 心理学导论课程节选

The sources are: one,the plasmid vector that we've picked, and the second is these genes that for some reason we're interested in.

第一个是我们选择的质粒载体,第二个是我们感兴趣的基因

耶鲁公开课 - 生物医学工程探索课程节选

Certainly, these genes are involved in life extension in simple species such as threadworms and yeast.

ECONOMIST: Abolishing ageing

"Wolves also have these genes but they don't use them as efficiently as dogs, " said Dr Axelsson.

BBC: Dog evolved 'on the waste dump'

Nor is it pure sophistry to think of these genes as part of an extended human genome.

ECONOMIST: Inhuman genomes