Where Methylation Occurs

Cytosine is one of the four bases that make up the alphabet of DNA. With three hydrogen bonds, cytosine is always paired with guanine. It is also the base where methylation occurs. Why is this important? Methylation turns off or suppresses gene expression and this is an important part of epigenetics. Buy our cytosine necklace for yourself or for a friend. It makes a great gift for epigeneticists, biochemists, molecular biologists, and starry-eyed organic chemistry students.