Resistance to zidovudine develops due to-
Correct Answer: Mutations at reverse transcriptase
Description: Ans. is 'a' i.e., Mutations at reverse transcriptase "Resistance to Zidovudine occurs by point mutation which alters reverse transcriptase enzyme. In the past when AZT was used alone, > 50% patients became nonresponsive to AZT within 1-2 years therapy due to growth of resistant mutants" - KDT
Category:
Pharmacology
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