Bacteriology: practice question

A Microbiology 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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Microbiology · Bacteriology

Sample item

What organism causes plague?

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

The answer and the reasoning

A. Yersinia pestis

This item reviews Bacteriology; Yersinia pestis is the best answer because it directly matches the pharmacologic or microbiologic principle described.

Option by option

  • A. Yersinia pestis (correct)

    Correct. Yersinia pestis fits the defining feature.

  • B. Proteus

    Proteus is unsupported by the key finding.

  • C. Listeria

    Listeria is plausible but not the best answer.

  • D. Bacillus anthracis

    Bacillus anthracis does not fit the stated mechanism or pattern.

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 Microbiology questions

Questions about this Microbiology question

What is the answer to this Microbiology question?

The best answer is A, Yersinia pestis. This item reviews Bacteriology; Yersinia pestis is the best answer because it directly matches the pharmacologic or microbiologic principle described.

Why is "Proteus" not the answer?

Proteus is unsupported by the key finding.

Why is "Listeria" not the answer?

Listeria is plausible but not the best answer.

Why is "Bacillus anthracis" not the answer?

Bacillus anthracis does not fit the stated mechanism or pattern.

What concept does this question test?

It tests Bacteriology in Microbiology. The correct option holds because: Correct. Yersinia pestis 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 Bacteriology?

Make a one-line identity card for each organism: shape and stain, defining test, toxin, disease and drug. Then use the flashcards and the other Microbiology 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.