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Methylation

Definition(s)

The attachment of methyl groups to DNA at cytosine bases; correlated with reduced transcription of the gene and thought to be the principal mechanism in X-chromosome inactivation and imprinting

Definition from: GeneReviewsThis link leads to a site outside Genetics Home Reference. from the University of Washington and the National Center for Biotechnology Information

Related discussion in the Handbook

See also Understanding Medical Terminology.

 
Published: May 20, 2013