title: Single strand interruptions in PBS 1 bacteriophage DNA molecule.
mesh_terms: D001412:Bacillus subtilis; D001435:Bacteriophages / Q000302:isolation & purification / Q000378:metabolism*; D002499:Centrifugation, Density Gradient; D055598:Chemical Phenomena; D002621:Chemistry; D004279:DNA, Viral / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D008970:Molecular Weight; D009691:Nucleic Acid Denaturation; D010759:Phosphorus Isotopes; D014316:Tritium; D014529:Uridine / Q000378:metabolism
chemical_list: D004279:DNA, Viral; D010759:Phosphorus Isotopes; D014316:Tritium; D014529:Uridine