DNA Damage

группа по молекулярной биологии и генетике микробиология биология Mutations are changes in genetic information. Originally created for DNA Interactive ( ). TRANSCRIPT: DNA is under constant attack from reactive chemicals and natural background radiation. Free radicals are the byproducts of normal metabolism in human cells. Seen here as bright particles they sometimes react with DNA and cause chemical changes radiation can also affect DNA. For example ultraviolet light from the sun can cause harmful chemical changes in the DNA of skin. These change