NEET 2006 · Class 11

Biological Classification

The causative agent of mad-cow disease is a (2006)

  1. (A)virus
  2. (B)bacterium
  3. (C)prion
  4. (D)worm

The NCERT line that answers it

Verbatim line

The most notable diseases caused by prions are bovine spongiform encephalopathy (BSE) commonly called mad cow disease in cattle and its analogous variant Creutzfeldt-Jacob disease (CJD) in humans.

Chapter
Biological Classification
Section
2.6 VIRUSES, VIROIDS, PRIONS AND LICHENS
Page
11
Words matched
23 of 28

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that mad cow disease (BSE) is caused by prions, which directly matches the correct answer and distinguishes it from viruses, bacteria, and worms.

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Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.

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Question text is reproduced from the published NEET 2006 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.