title: Origin and direction of bacteriophage T4 DNA replication. II. A gradient of marker frequencies in partially replicated T4 DNA as assayed by transformation.
mesh_terms: D002247:Carbon Isotopes; D002875:Chromosomes; D003090:Coliphages; D004254:DNA Nucleotidyltransferases; D004261:DNA Replication; D004269:DNA, Bacterial / Q000302:isolation & purification; D004279:DNA, Viral / Q000096:biosynthesis*; D004754:Enterobacter; D004926:Escherichia coli; D005815:Genetic Code; D009587:Nitrogen Isotopes; D010759:Phosphorus Isotopes; D014170:Transformation, Genetic; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D004269:DNA, Bacterial; D004279:DNA, Viral; D009587:Nitrogen Isotopes; D010759:Phosphorus Isotopes; D014316:Tritium; D004254:DNA Nucleotidyltransferases