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  1. Methylation - Wikipedia

    Methylation, in the chemical sciences, is the addition of a methyl group on a substrate, or the substitution of an atom (or group) by a methyl group. Methylation is a form of alkylation, with a …

  2. Methylation: Definition, Research, Testing, and Support Methods

    Mar 27, 2023 · DNA methylation refers to the process of adding a methyl group to one of the bases of your DNA. We’ll explore how this process effects gene expression and why experts …

  3. What Is Methylation and Why Is It Important? - Biology Insights

    Aug 2, 2025 · Methylation is a fundamental biochemical process occurring continuously within every cell of the body. It involves the transfer of a small chemical tag, a methyl group, from …

  4. Methylation - National Human Genome Research Institute

    1 day ago · Methylation is a chemical modification of DNA and other molecules that may be retained as cells divide to make more cells. When found in DNA, methylation can alter gene …

  5. Methylation | Biochemistry, Genetics & Epigenetics | Britannica

    Methylation, the transfer of a methyl group (―CH3) to an organic compound. Methyl groups may be transferred through addition reactions or substitution reactions; in either case, the methyl …

  6. Introduction to DNA Methylation - Merck

    DNA methylation is a normally occurring modification in both eukaryotic and prokaryotic organisms. In many plants and animals, it is characterized by the biochemical addition of a …

  7. What Is Methylation? Understanding The Body’s Essential …

    Simply put, methylation is a biochemical reaction in which a methyl group (one carbon atom and three hydrogen atoms) is added to another molecule. But this small chemical change can have …

  8. What is Methylation? How It Impacts Your Health

    Jun 13, 2025 · Methylation is a critical biochemical reaction happening continuously within every cell and tissue throughout your body. It involves the transfer of a methyl group (one carbon …

  9. What is Methylation? A Basic Guide - clarityxdna.com

    Nov 8, 2024 · Methylation often occurs at the promoter region of a gene, which can silence the expression from one parent while keeping it active from the other. Correct methylation is very …

  10. The Role of Methylation in Gene Expression - Nature

    Presently, the exact role of methylation in gene expression is unknown, but it appears that proper DNA methylation is essential for cell differentiation and embryonic development.