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EnglishEdit

EtymologyEdit

methyl +‎ -ation

PronunciationEdit

NounEdit

methylation ‎(plural methylations)

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  1. (chemistry) The addition of a methyl group to a molecule.
  2. (genetics) The addition of a methyl group to cytosine and adenine residues in DNA that leads to the epigenetic modification of DNA and the reduction of gene expression and protein production.

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