title: Evidence that there are two types of determinant for tetracycline resistance among R-factors.
mesh_terms: D004926:Escherichia coli / Q000187:drug effects / Q000235:genetics*; D005799:Genes, Dominant; D005809:Genes, Regulator; D005815:Genetic Code; D014176:Protein Biosynthesis; D011815:R Factors; D013752:Tetracycline / Q000494:pharmacology*
chemical_list: D013752:Tetracycline