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

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New genes emerge as dominant, no longer recessive or latent, and organisms change.

新的基因出现并支配，不在隐性潜伏，然后生物就突变了。

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The genome starts piling on mutations that mean nothing; that's how they date the branches of the genome, by looking at the number of neutral mutations.

基因积累了许多无意义的突变,这就是他们如何鉴定基因分支的年代,看中性突变的数量就行了

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