title: Effect of recA and polA mutations on gene duplication in Salmonella typhimurium.
mesh_terms: D004261:DNA Replication; D004259:DNA-Directed DNA Polymerase / Q000235:genetics; D005796:Genes; D009154:Mutation; D011995:Recombination, Genetic; D012486:Salmonella typhimurium / Q000235:genetics*
chemical_list: D004259:DNA-Directed DNA Polymerase