They found 88 sites on the men’s DNA where the amount of methylation correlated with their ages.
在这些人的大量甲基化了的DNA上,有88个点与他们的年龄关系密切。
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An analysis of a person's DNAmethylation finds that the number of methyl groups attached to the DNA correlates with the person's age — making saliva analysis a possible CSI tool.