title: Do the Salmonella typhimurium tester strains used in mutagenicity assays display 'plasmid-enhanced genetic drift'?
mesh_terms: D005787:Gene Frequency; D009152:Mutagenicity Tests / Q000592:standards*; D010641:Phenotype; D010957:Plasmids; D012486:Salmonella typhimurium / Q000235:genetics*