title: [Abnormal replication of an R factor with special reference to composite structure (author's transl)].
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D002499:Centrifugation, Density Gradient; D003090:Coliphages / Q000378:metabolism; D004261:DNA Replication; D004270:DNA, Circular; D004279:DNA, Viral / Q000032:analysis / Q000096:biosynthesis / Q000648:ultrastructure; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000378:metabolism*; D005111:Extrachromosomal Inheritance; D005796:Genes; D008854:Microscopy, Electron; D009154:Mutation; D010442:Peptide Chain Initiation, Translational
chemical_list: D000900:Anti-Bacterial Agents; D004270:DNA, Circular; D004279:DNA, Viral