Biological Classification Question 125

125. Tobacco mosaic virus is a tubular filament of size

(a) $700 \times 30 nm$

(b) $300 \times 10 nm$

(c) $300 \times 5 nm$

(d) $300 \times 20 nm$

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Answer : d

Hints & Solutions

(d) Tobacco mosaic virus is $300 nm$ long and $20 nm$ in diameter.



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