title: Ribosomal mutation affecting the streptomycin phenotype of str A1 str A+ merodiploids in E. coli.
mesh_terms: D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial; D004171:Diploidy; D004352:Drug Resistance, Microbial; D004926:Escherichia coli; D005827:Genetics, Microbial; D005838:Genotype; D006238:Haploidy; D009154:Mutation; D010641:Phenotype; D012270:Ribosomes; D013307:Streptomycin / Q000494:pharmacology*
chemical_list: D013307:Streptomycin