XNA is synthetic DNA that’s stronger than the real thing
New research has brought us closer than ever to synthesizing entirely new forms of life. An international team of researchers has shown that artificial nucleic acids - called “XNAs” - can replicate and evolve, just like DNA and RNA.
The implications of the team’s findings are numerous and far-reaching. For one thing, the study sheds significant light on the origins of life itself. In the past, investigations into XNA have been largely driven by the question of whether simpler genetic systems may have existed before the emergence of RNA and DNA; the fact that these XNAs appear to be capable of evolution adds to an ever-growing body of evidence of a genetic system predating DNA and RNA both.
Read more here.