Antibiotics: practice question

A Pharmacology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Pharmacology · Antibiotics

Sample item

What mechanism has rifampicin?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

B. RNA polymerase inhibition

This item reviews Antibiotics; RNA polymerase inhibition is the best answer because it directly matches the pharmacologic or microbiologic principle described.

Option by option

  • A. Folate block

    Folate block is unsupported by the key finding.

  • B. RNA polymerase inhibition (correct)

    Correct. RNA polymerase inhibition fits the defining feature.

  • C. DNA gyrase inhibition

    DNA gyrase inhibition does not fit the stated mechanism or pattern.

  • D. Cell wall inhibition

    Cell wall inhibition is plausible but not the best answer.

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

Questions about this Pharmacology question

What is the answer to this Pharmacology question?

The best answer is B, RNA polymerase inhibition. This item reviews Antibiotics; RNA polymerase inhibition is the best answer because it directly matches the pharmacologic or microbiologic principle described.

Why is "Folate block" not the answer?

Folate block is unsupported by the key finding.

Why is "DNA gyrase inhibition" not the answer?

DNA gyrase inhibition does not fit the stated mechanism or pattern.

Why is "Cell wall inhibition" not the answer?

Cell wall inhibition is plausible but not the best answer.

What concept does this question test?

It tests Antibiotics in Pharmacology. The correct option holds because: Correct. RNA polymerase inhibition fits the defining feature.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Antibiotics?

Learn drugs as classes, then the exception in each class that an examiner would pick. Then use the flashcards and the other Pharmacology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.