Chloramphenicol ResistanceChloramphenicolDrug Resistance, MicrobialChloramphenicol O-AcetyltransferaseR FactorsThiamphenicolExtrachromosomal InheritancePlasmidsAcetyltransferasesConjugation, GeneticEscherichia coliDNA, BacterialTransformation, BacterialGenes, BacterialStreptomycinTetracyclineDrug Resistance, BacterialAnti-Bacterial AgentsMicrobial Sensitivity TestsChromosomes, BacterialBase SequenceMolecular Sequence DataCloning, MolecularDNA Transposable ElementsBacillus subtilisDrug ResistanceErythromycinMutationBacterial ProteinsClostridium perfringensHaemophilus influenzaeDNA Restriction EnzymesChromosome MappingDNA, CircularTransduction, GeneticRestriction MappingNucleic Acid HybridizationDrug Resistance, NeoplasmDrug Resistance, MultipleStaphylococcusAmino Acid SequenceDrug Resistance, Multiple, BacterialTransformation, GeneticGenesStreptococcus pneumoniaeBacteriophagesSequence Analysis, DNACulture MediaOperonDisease ResistanceMutagenesis, InsertionalStaphylococcus aureusVascular ResistanceRecombination, GeneticDrug Resistance, ViralPolymerase Chain ReactionPenicillin ResistanceAmpicillinPromoter Regions, GeneticTetracycline ResistanceTranscription, Genetic