title: Molecular evolution. Active ancestral molecules.
authors.forename: C B
authors.initials: CB
authors.lastname: Stewart
mesh_terms: D000818:Animals; D001188:Artiodactyla / Q000145:classification; D005075:Biological Evolution; D016384:Consensus Sequence; D010179:Pancreas / Q000201:enzymology; D018626:Retroelements; D012260:Ribonucleases / Q000737:chemistry / Q000235:genetics
chemical_list: D018626:Retroelements; D012260:Ribonucleases