NEET 1994 · Class 11

Biological Classification

Tobacco mosaic virus TMV genes are (1994)

  1. (A)single stranded RNA
  2. (B)double stranded DNA
  3. (C)proteinaceous
  4. (D)double stranded RNA

The NCERT line that answers it

Verbatim line

It consists of a central core of red spheres representing the RNA genome, surrounded by a shell of green, disc-shaped protein subunits called capsids.

Chapter
Biological Classification
Section
2.6 VIRUSES, VIROIDS, PRIONS AND LICHENS

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 'RNA genome' for TMV, which conclusively identifies it as having RNA genetic material, making option A (single stranded RNA) correct.

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