title: Chromosome replication in an Hfr strain of Escherichia coli.
mesh_terms: D002455:Cell Division; D002875:Chromosomes / Q000378:metabolism*; D004261:DNA Replication; D004926:Escherichia coli / Q000378:metabolism*; D009154:Mutation; D010957:Plasmids; D013045:Species Specificity; D013997:Time Factors