title: In search of RNA ancestors.
authors: Laboratory of Exobiology, Faculty of Science, University of Nijmegen, The Netherlands.
authors: A W
authors: AW
authors: Schwartz
authors: J
authors: J
authors: Visscher
authors: R
authors: R
authors: Van der Woerd
authors: C G
authors: CG
authors: Bakker
mesh_terms: D002384:Catalysis; D055598:Chemical Phenomena; D002621:Chemistry; D012313:RNA / Q000235:genetics*; D013698:Templates, Genetic
chemical_list: D012313:RNA