title: Transposition derivatives of an Hfr strain of Escherichia coli K-12.
mesh_terms: D000166:Acridines / Q000494:pharmacology; D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial / Q000187:drug effects; D004926:Escherichia coli; D006238:Haploidy; D011995:Recombination, Genetic; D012723:Sex
chemical_list: D000166:Acridines