Try it
Pharmacology · Antiviral drugs
Sample itemWhat enzyme is targeted by many nucleoside analog antiviral agents?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Viral polymerase
Many nucleoside analogs inhibit viral polymerases or reverse transcriptase after activation, thereby interrupting viral genome replication.
Option by option
A. Human hemoglobin
Hemoglobin is not a standard antiviral target.
B. Bacterial cell wall
Bacterial cell wall synthesis is targeted by antibacterial agents.
C. Viral polymerase (correct)
Correct: viral polymerase inhibition blocks genome replication.
D. Platelet receptor
Platelet receptors are not the main target of nucleoside antivirals.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
More Pharmacology questions
- Antiviral drugsAn HIV patient on a zidovudine-containing regimen develops macrocytic anaemia. What is t…
- Antiviral drugsWhy is acyclovir selectively toxic to herpes-infected cells?
- Antiviral drugsAn HIV patient with CMV retinitis is treated with ganciclovir. Which adverse effect is m…
- Antiviral drugsWhat is the target of acyclovir after viral activation?