title: Electron microscopic analysis of bacteriophages P1, P1Cm, and P7. Determination of genome sizes, sequence homology, and location of antibiotic-resistance determinants.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D001483:Base Sequence; D002701:Chloramphenicol / Q000494:pharmacology; D003090:Coliphages; D004279:DNA, Viral; D005796:Genes; D008854:Microscopy, Electron; D008970:Molecular Weight; D010403:Penicillin Resistance; D011815:R Factors
chemical_list: D004279:DNA, Viral; D002701:Chloramphenicol; D000667:Ampicillin