title: What introns have to tell us: hierarchy in genome evolution.
authors: Department of Biochemistry, Dalhousie University, Halifax, Nova Scotia, Canada.
authors: W F
authors: WF
authors: Doolittle
mesh_terms: D000818:Animals; D005075:Biological Evolution; D004247:DNA / Q000235:genetics; D005091:Exons; D005796:Genes; D007438:Introns; D008957:Models, Genetic; D012313:RNA / Q000235:genetics; D012641:Selection, Genetic; D014714:Vertebrates
chemical_list: D012313:RNA; D004247:DNA