Eukaryotic DNA Methylation Occurs on Which Base

Question

Eukaryotic DNA methylation occurs on which base?
A)guanine
B)cytosine
C)thymine
D)adenine
E)thymine and adenine

Accepted Answer

Eukaryotic DNA methylation occurs on cytosine base, specifically on the 5-carbon position of the cytosine ring. This process involves the addition of a methyl group to the cytosine base, resulting in 5-methylcytosine.