According to a recent article at New Scientist, "Why 'RNA world' theory on origin of life may be wrong after all," the RNA world model of the origin of life is under attack:
Life has a chicken-and-egg problem: enzymes are needed to make nucleic acids -- the genetic material -- but to build them you need the genetic information contained in nucleic acids. So most researchers assume that the earliest life, long before the evolution of cells, consisted of RNA molecules. These contain genetic inf...
Published on June 26, 2015 13:11