DNA methylation - Wikipedia
DNA methylation is a biological process by which methyl groups are added to the DNA molecule. Methylation can change the activity of a DNA segment without changing the sequence. When …
DNA Methylation and Its Basic Function - PMC
In the mammalian genome, DNA methylation is an epigenetic mechanism involving the transfer of a methyl group onto the C5 position of the cytosine to form 5-methylcytosine. DNA methylation …
DNA Methylation: Can Your Diet Reduce Your Risk of Disease?
Dec 10, 2025 · DNA methylation is a common type of epigenetic change. It occurs when a chemical (known as a methyl group) is added to your DNA. This chemical can also be …
DNA Methylation - an overview | ScienceDirect Topics
DNA methylation is an epigenetic modification involving the transfer of a methyl group onto the C5 position of the cytosine ring of DNA to form 5-methylcytosine (5 mC), and regarded as an …
Methylation - National Human Genome Research Institute
2 days ago · When found in DNA, methylation can alter gene expression. In this process, chemical tags called methyl groups attach to a particular location within DNA where they turn a …
The Role of DNA Methylation in Gene Expression: Mechanisms ...
Feb 19, 2025 · DNA methylation is an essential epigenetic mechanism that involves the addition of a methyl group to the DNA molecule, primarily affecting the expression of genes. Its …
What Is DNA Methylation and How Does It Affect Your Body?
Jul 1, 2025 · DNA methylation is a biological process involving the addition of a methyl group to a DNA molecule. This is a form of epigenetic change, meaning it alters the activity of a gene …