Question

The size of the parvoviruses is

• A. 300 nm
• B. 20 nm
• C. 400 nm
• D. 0.002 nm

Answer 1

Answer: (B)

20 nm

Parvoviruses are linear, non-segmented single-stranded DNA viruses which can cause disease in some animals, including starfish and humans.

Parvoviruses are among the smallest viruses and are 18–28 nm in diameter. It causes a highly contagious viral illness in dogs.

So, the answer is B.