:: Top News “XNA” (Not DNA or RNA) May Form Basis for Life on Exo-Planets Synthetic biologists have discovered that six other molecules can could store genetic information and pass it on. ... Links with more detailed information: • “XNA” (Not DNA or RNA) May Form Basis for Life on Exo-Planets • Strange Cousins: Molecular Alternatives to DNA, RNA Offer New Insight Into Life’s Origins Published on 5/22/2012 |