Etoposide acts by -: (A) Inhibition of dihydrofolate, (B) Inhibition of topoisomerase, (C) Inhibition of purine synthesis, (D) Inhibition of protein synthesis
Answer is B. Ans. is 'b' i.e., Inhibition of topoisomerase o Etoposide and teniposide are natural anticancer drugs. o They act by inhibiting topoisomerase II that leads to DNA strand breakage.