title: Formation of complex Col E1 DNA by replication.
mesh_terms: D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D003087:Colicins; D004261:DNA Replication; D004269:DNA, Bacterial / Q000096:biosynthesis*; D004926:Escherichia coli / Q000378:metabolism*; D008854:Microscopy, Electron; D009154:Mutation; D010617:Phenanthridines; D011995:Recombination, Genetic; D013395:Sucrose; D013696:Temperature; D013936:Thymidine / Q000378:metabolism; D013941:Thymine / Q000378:metabolism; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D003087:Colicins; D004269:DNA, Bacterial; D010617:Phenanthridines; D014316:Tritium; D013395:Sucrose; D013941:Thymine; D013936:Thymidine