title: The invertible DNA segments of coliphages Mu and P1 are identical.
mesh_terms: D003090:Coliphages / Q000032:analysis*; D004279:DNA, Viral; D005796:Genes; D008242:Lysogeny; D009690:Nucleic Acid Conformation; D009693:Nucleic Acid Hybridization
chemical_list: D004279:DNA, Viral