title: Evidence for extrachromosomal location of prophage N15.
mesh_terms: D002021:Buffers; D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D003090:Coliphages / Q000254:growth & development* / Q000302:isolation & purification / Q000378:metabolism; D003470:Culture Media; D004261:DNA Replication; D004269:DNA, Bacterial / Q000302:isolation & purification; D004279:DNA, Viral / Q000096:biosynthesis / Q000302:isolation & purification; D004926:Escherichia coli / Q000254:growth & development; D005827:Genetics, Microbial; D008970:Molecular Weight; D009154:Mutation; D010759:Phosphorus Isotopes; D013395:Sucrose; D013696:Temperature; D013936:Thymidine / Q000378:metabolism; D014783:Viscosity
chemical_list: D002021:Buffers; D002247:Carbon Isotopes; D003470:Culture Media; D004269:DNA, Bacterial; D004279:DNA, Viral; D010759:Phosphorus Isotopes; D013395:Sucrose; D013936:Thymidine