Vinca alkaloids exert antitumor activity by: A. Activating topoisomerase II to cause breaks in DNA strands B. Crosslinking DNA strands C. Inhibiting DNA mediated RNA synthesis D. Inhibiting polymerization of tubulin to form intracellular microtubules

Vinca alkaloids exert antitumor activity by:
A. Activating topoisomerase II to cause breaks
in DNA strands
B. Crosslinking DNA strands
C. Inhibiting DNA mediated RNA synthesis
D. Inhibiting polymerization of tubulin to form
intracellular microtubules
by

1 Answer

Answer :

D. Inhibiting polymerization of tubulin to form
intracellular microtubules
by

Related questions

The following cytotoxic drug acts by inhibiting depolymerization of tubulin and thus producing abnormal arrays of microtubules: A. Paclitaxel B. Vinblastine C. Etoposide D. Mitoxantrone (p. 774) 60.9 C 60.10 B 60.11 D 60.12 A Ai

Description : The following cytotoxic drug acts by inhibiting depolymerization of tubulin and thus producing abnormal arrays of microtubules: A. Paclitaxel B. Vinblastine C. Etoposide D. Mitoxantrone (p. 774) 60.9 C 60.10 B 60.11 D 60.12 A Ai

Last Answer : A. Paclitaxel

The most important mechanism by which tetracycline antibiotics exert antimicrobial action is: A. They chelate Ca2+ ions and alter permeability of bacterial cell membrane B. They bind to 30S ribosomes and inhibit bacterial protein synthesis C. They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria D. They interfere with DNA mediated RNA synthesis in bacteria

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Last Answer : B. They bind to 30S ribosomes and inhibit bacterial protein synthesis

The polyene antibiotics act by: A. Inhibiting fungal cytochrome P450 enzyme B. Binding to ergosterol and creating micropores in fungal cell membrane C. Inhibiting fungal DNA synthesis D. Disorienting microtubules in fungal cells

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The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes and inhibit bacterial protein synthesis (c) They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

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Last Answer : Ans: B

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Rifampin kills tubercle bacilli by: A. Binding to mycobacterial DNA dependent RNA polymerase B. Inhibiting mycobacterial DNA synthesis C. Inhibiting synthesis of mycolic acids in mycobacteria D. Damaging mycobacterial mitochondria

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Last Answer : D. All of the above

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What is true of Quinupristin-Dalfopristin: A. It is a synergistic combination of two similar antibiotics B. It acts by inhibiting bacterial protein synthesis C. It is active against most resistant coccal infections D. All of the above are correct

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Last Answer : C

During transcription, do both strands of DNA get transcribed into a double stranded RNA molecule?

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The following is true of loperamide except: A. It is absorbed from intestines and exerts centrally mediated antidiarrhoeal action B. It acts on the opioid receptors in the gut C. It increases tone and segmenting activity of the intestines D. It inhibits intestinal secretion by binding to calmodulin in the mucosal cells

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