DNA methylation is a process by which a cell can modify its DNA in order to alter expression of a given genes product, usually a protein. DNA methylation is termed a chemical modification which initially thought to only be an inherited property of our DNA. DNA methylation modifications can be altered without affecting the DNA sequence remarkable. There is no change in the genetic code with the addition or removal of DNA methylation modifications. Rather than affecting the genetic code, which is the blueprint, DNA methylation affects the epigenetic code, the expression of the blueprint.
DNA methylation is a process of modifying DNA to alter gene expression, as well as chromatin packaging. Read more from the links to the left and above to learn more about this fascinating modification to DNA, DNA Methylation.