The attachment of methyl groups to DNA at cytosine bases. Methylation is correlated with reduced transcription of genes. (http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=gene&part=glossary#IX-T)
The attachment of methyl groups to DNA at cytosine bases. Methylation is correlated with reduced transcription of genes. (http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=gene&part=glossary#IX-T)