<prompt> Drug resistance in Tuberculosis is due to -TransformationTransductionConjugationMutation  <response>: Ans. is d i.e., Mutation o The most common mechanism of antitubercuiar drues resistance is bv mutation -1. INH2. Rifampin3. PZA4. ETB5. Streptomycin---Catalase - peroxidase gene Kat G or inh A gene,rpo B genepnc A geneemb B gene16 S rRNA gene rrs or ribosomal protein S-12 gene rpst. 