Immunology: 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.

Try it

Microbiology · Immunology

Sample item

Which major-histocompatibility-complex class presents endogenous viral peptides to cytotoxic T cells?

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

The answer and the reasoning

B. MHC class I

This item reviews Immunology; MHC class I is the best answer because it directly matches the pharmacologic or microbiologic principle described.

Option by option

  • A. Complement C3

    Complement C3 is plausible but not the best answer.

  • B. MHC class I (correct)

    Correct. MHC class I fits the defining feature.

  • C. Secretory IgA

    Secretory IgA is unsupported by the key finding.

  • D. MHC class II

    MHC class II 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 B, MHC class I. This item reviews Immunology; MHC class I is the best answer because it directly matches the pharmacologic or microbiologic principle described.

Why is "Complement C3" not the answer?

Complement C3 is plausible but not the best answer.

Why is "Secretory IgA" not the answer?

Secretory IgA is unsupported by the key finding.

Why is "MHC class II" not the answer?

MHC class II does not fit the stated mechanism or pattern.

What concept does this question test?

It tests Immunology in Microbiology. The correct option holds because: Correct. MHC class I 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 Immunology?

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.