DNA methylation is the covalent addition of methyl groups to DNA bases, typically the cytosine of CpG dinucleotides. It is catalyzed by methyltransferase enzymes using a S-adenosyl methionine ...

May 22, 2025 — Scientists have analyzed ancient DNA and compared more than 400 fossils from 17 natural history museums to figure out how and why extinct sloths got so ...

READING, Pa. – With millions of DNA samples on file and a bankruptcy case unfolding, a new legal battle is brewing over what happens next at 23andMe and who gets access to deeply personal ...

Rodents in scientific research. Read about rats, hamsters and mice. Learn about mouse allergens, beach mouse habitats, rodent control, lab mice, and the common house mouse.

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