ApharmdB writes: DNA & RNA are the basic building blocks of life. But could there be alternatives? Scientists have created HNA, CeNA, LNA, ANA, FANA and TNA in the lab. That is allowing for exploration of numerous questions such as 'What is the origin of DNA & RNA?' The journal article can be found here.
"No, no, I don't mind being called the smartest man in the world. I just wish
it wasn't this one."
-- Adrian Veidt/Ozymandias, WATCHMEN