title: A catenated intermediate in plasmid replication.
mesh_terms: D002250:Carbon Radioisotopes; D002499:Centrifugation, Density Gradient; D004261:DNA Replication; D004269:DNA, Bacterial / Q000096:biosynthesis* / Q000378:metabolism; D004270:DNA, Circular; D004277:DNA, Single-Stranded; D007553:Isotope Labeling; D007700:Kinetics; D008854:Microscopy, Electron; D011995:Recombination, Genetic; D013210:Staphylococcus / Q000378:metabolism*; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D002250:Carbon Radioisotopes; D004269:DNA, Bacterial; D004270:DNA, Circular; D004277:DNA, Single-Stranded; D014316:Tritium; D013936:Thymidine