DNA is fundamental to the biology of all life on Earth, but how many of us actually know what it is or what it's made of?

Simple reaction makes the building blocks of a nucleic acid "Cyanide to the RNA base cytosine" becomes a new clue for origin of life researchers. John Timmer – Oct 2, 2012 3:20 pm | 34 ...

Was simple TNA the first nucleic acid on Earth to carry a genetic code? By Andy Coghlan. 26 July 2003 YOU’VE heard of DNA and RNA, but what about TNA? It resembles its more famous ...