| http://www.w3.org/ns/prov#value | - The genes on one of the two X chromosomes in each female cell are silenced by methylation.Methyl groups and other small molecules may sometimes attach to certain spots on chromosomes, helping to relax tightly coiled strands of DNA so that genes can be expressed.Sometimes the coils are made tighter so that active genes are inactivated.Methyl groups also inactivate remnants of past viral infections,
|
