DNA methylation in biology - meaning, definition and examples

Ginzo on Instagram: "1. Dr. Helen Rydell, a molecular geneticist at Oxford, studied over 2,000 DNA samples from families with multigenerational anxiety. Her discovery was unsettling: chronic stress doesn’t just influence genes — it locks itself into the body’s on/off switches, through a mechanism called methylation. That means your fear of failure, irritability, or constant alertness might not even be yours — it could be your grandmother’s stress, written chemically into your genome. 2. The brea

med's go on Instagram: "The most common mechanism of bacterial resistance to macrolides is methylation of the 23S rRNA of the bacterial 50S ribosomal subunit. This methylation prevents the macrolide from binding to its target site, thereby conferring cross-resistance to structurally related drugs such as clindamycin and streptogramins (MLS_B resistance). This mechanism is typically mediated by erm (erythromycin ribosome methylase) genes. Unlike β-lactamase production or porin changes, this resis