Q. Tobacco mosaic virus is a tubular filament of size
A) $300\ \times \ 20\ nm$
B) $700\ \times \ 30\ nm$
C) $300\ \times \ 10\ nm$
D) $300\ \times \ 5\ nm$
Explanation
TMV is elongated rod-like, $3000\mathring{\mathrm{A}}$ (300 nm) long and $180\mathring{\mathrm{A}}$ (18nm) in diameter.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.