Origins of life (Figure 2) (IMAGE) Nagoya University Caption Murayama and his colleagues showed that L-aTNA fragments could interlink on complementary L-aTNA, RNA and DNA templates without the need for enzymes. Credit Keiji Murayama Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.