Vaccines: 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 · Vaccines

Sample item

What is a toxoid vaccine made from?

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

The answer and the reasoning

D. Inactivated toxin

This item reviews Vaccines; Inactivated toxin is the best answer because it directly matches the drug or organism pattern described.

Option by option

  • A. Antibody only

    Antibody only is not supported by the key finding.

  • B. Whole parasite

    Whole parasite is plausible but is not the best answer here.

  • C. Live bacterium

    Live bacterium does not fit the stated mechanism or pattern.

  • D. Inactivated toxin (correct)

    Correct. Inactivated toxin is supported by the defining feature.

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 D, Inactivated toxin. This item reviews Vaccines; Inactivated toxin is the best answer because it directly matches the drug or organism pattern described.

Why is "Antibody only" not the answer?

Antibody only is not supported by the key finding.

Why is "Whole parasite" not the answer?

Whole parasite is plausible but is not the best answer here.

Why is "Live bacterium" not the answer?

Live bacterium does not fit the stated mechanism or pattern.

What concept does this question test?

It tests Vaccines in Microbiology. The correct option holds because: Correct. Inactivated toxin is supported by 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 Vaccines?

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.