title: On the origin and direction of replication of the Escherichia coli K12 chromosome.
mesh_terms: D000596:Amino Acids / Q000378:metabolism; D001120:Arginine / Q000378:metabolism; D001966:Bromine; D002586:Cesium; D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial; D003090:Coliphages; D004247:DNA / Q000378:metabolism; D003720:Densitometry; D004926:Escherichia coli; D066298:In Vitro Techniques; D007930:Leucine / Q000378:metabolism; D008722:Methods; D013941:Thymine / Q000378:metabolism; D014161:Transduction, Genetic; D014461:Ultracentrifugation; D014500:Uracil Nucleotides
chemical_list: D000596:Amino Acids; D014500:Uracil Nucleotides; D002586:Cesium; D004247:DNA; D001120:Arginine; D007930:Leucine; D013941:Thymine; D001966:Bromine