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Biological Classification question

2014 · Q22
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Biological Classification question

2014 · Q22

NEETBiologyBiological ClassificationMCQ+4 / −1
Which of the following shows coiled RNA strand and capsomeres?
  1. A
    Polio virus
  2. B
    Tobaco mosaic virus
  3. C
    Measles virus
  4. D
    Retrovirus
View written solutionFree

Correct answer: B

Tobacco mosaic virus is a RNA virus that causes tobacco mosaic disease. It has single stranded coiled RNA molecule as its genetic material a part of which hangs outside the protein coat. Protein coat consists of approximately 2130 capsomeres which are helically arranged to form a hollow cylinder of about 4 nm diameter.

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