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出典:Wikipedia
出典:『Wikipedia』 (2011/06/24 21:57 UTC 版)
DNA methylation involves the addition of a methyl group to the 5 position of the cytosine pyrimidine ring or the number 6 nitrogen of the adenine purine ring (cytosine and adenine are two of the four bases of DNA). This modification can be inherited through cell division.
DNA methylation