RNA is supposed to fall apart within hours, yet researchers have now read it from a mammoth frozen in Siberian permafrost 39,000 years ago — and the transcripts caught his muscle tissue in the middle of a stress response
RNA is the molecule that biologists generally consider disposable. Unlike DNA, which is designed to be a long-term stable file, RNA is made, used and broken down by a cell in a matter of hours, sometimes minutes, as part of an ordinary task: converting genetic instructions into proteins and then discarding the messenger after the … Read more