title: Two stages in the replication of bacteriophage lambda DNA.
mesh_terms: D001345:Autoradiography; D002499:Centrifugation, Density Gradient; D003090:Coliphages; D004261:DNA Replication; D004279:DNA, Viral / Q000096:biosynthesis* / Q000302:isolation & purification; D004926:Escherichia coli; D006863:Hydrogen-Ion Concentration; D008722:Methods; D008854:Microscopy, Electron; D009154:Mutation; D010710:Phosphates / Q000378:metabolism; D010759:Phosphorus Isotopes; D013936:Thymidine / Q000378:metabolism; D013997:Time Factors; D014316:Tritium; D014779:Virus Replication
chemical_list: D004279:DNA, Viral; D010710:Phosphates; D010759:Phosphorus Isotopes; D014316:Tritium; D013936:Thymidine