Number of components in alfa alfa mosaic virus is

A. 1

B. 2

C. 3

D. 4

Answer: Option D

Solution(By Examveda Team)

The number of components in alfa alfa mosaic virus is 4.
AMV (Alfalfa mosaic virus) contains four nucleoproteins in major amounts along with a definite length of RNA.
The virion has a capsid (coat protein) but no envelope. The icosahedral symmetry of the capsid is round to elongated.
The range for the length of the virion particle is about 30 - 57 nm. AMV is a multipartite virus and is composed of four particles (three bacilliform and one spheroidal) with a diameter of 18 nm.