title: Forcing the evolution of an RNA enzyme in the test tube.
authors.forename: E
authors.initials: E
authors.lastname: Culotta
mesh_terms: D000818:Animals; D005075:Biological Evolution; D009154:Mutation; D016337:RNA, Catalytic / Q000235:genetics*; D013768:Tetrahymena / Q000235:genetics
chemical_list: D016337:RNA, Catalytic