Functional RNAs exhibit tolerance for non-heritable 2′–5′ versus 3′–5′ backbone heterogeneity Aaron E. Engelhart, Matthew W. Powner & Jack W. Szostak Nature Chemistry, 2013, 5 (5), pp 390–394. doi: 10.1038/nchem.1623 Publisher | ResearchGate | PubMed | Google Scholar Featured in: News and Views | Nature […]