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Standard XII
Biology
Question

TMV contains
  1. RNA + protein
  2. DNA + RNA
  3. DNA
  4. DNA + protein

A
DNA + protein
B
DNA
C
RNA + protein
D
DNA + RNA
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Solution
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Tobacco mosaic virus (TMV) is a positive-sense single-stranded RNA virus. TMV is composed of RNA and protein. Tobacco mosaic virus has a rod-like appearance. Its capsid is made of coat protein and one molecule of genomic single strand RNA, 6400 bases long. The coat protein self-assembles into the rod-like helical structure around the RNA which forms a hairpin loop structure.
So, the correct answer is option B.

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Similar Questions
Q1
In an experiment, common Tobacco Mosaic Virus (TMV) and its mutant strain 'HR' were used to prepare hybrid particles with 'HR' nucleic acid and 'TMV' protein coat. These hybrids were mixed with antibodies against 'HR' strains. If this mixture is applied to plant materials, it will result in
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Q2
TMV contains
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Q3
TMV possesses
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Q4
Assertion: TMV is a virus which causes mosaic disease.

Reason: TMV has RNA as genetic material.
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Q5
What is TMV?
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