title: Molecular evolution. Why introns-in-pieces?
authors.forename: A J
authors.initials: AJ
authors.lastname: Roger
authors.forename: W F
authors.initials: WF
authors.lastname: Doolittle
mesh_terms: D001419:Bacteria / Q000235:genetics*; D005075:Biological Evolution; D007438:Introns / Q000235:genetics*; D017381:Spliceosomes / Q000737:chemistry*