Class 11 NEET Biology Biological Classification Questions Part 1

(b) : Influenza viruses are spherical in shape measuring about 800-1200 Å in diameter. It has a protein capsid that encloses a single stranded RNA. The single stranded RNA is generally linear and constitutes about 10% of the virus particle. RNA is genetic material in other viruses like poliomyelitis, foot and mouth disease virus and tobacco mosaic virus etc.