BioScience Dictionary

 
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Found DNA methylation 1 time.

Displaying results 1 to 10.

1. DNA methylation
The attachment of a methyl group (a -CH3 group) to a cytosine (one of four nitrogenous base s found in DNA ) in an eukaryotic DNA. This is done routinely, as a way to protect self DNA from the enzyme s and chemicals produced to destroy foreign DNA, and as a way to regulate transcription of gene s in the DNA.