19 mayo 2015
Researchers studying microRNA — tiny strands of ribonucleic acid — in beta cells have found a type that plays a key role in cell death under stress. MicroRNAs have been regulating cell processes for aeons, as evidenced by phylogeny. Humans have around 21,000 genes, of which 700 to 1,000 code for microRNAs — and 300 of these genes are present in all higher life forms, from worms to humans.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fWoDYYiKU6k/150519122108.htm
