A process whereby a molecule CH3, is added to DNA, RNA or a protein.
When it affects DNA, a CH3 group or a methyl group is added to a cytosine when it is followed by the guanosine.
In DNA can be associated with absent gene transcription, which may becomes a stable state that is physiologically irreversible.
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[…] (Deoxyribonucleic acid) methylation is a regulator of gene transcription and plays a role in causing hematologic […]