This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
Drug resistance in Tuberculosis is due to - 
Select and explain. 
A. Transformation, B. Transduction, C. Conjugation, D. Mutation
D: Mutation
Answer: D: Mutation 
Explanation: 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).