NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

VIRUSES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The host range of the virus is determined by ____
A
whether or not its nucleic acid is DNA or RNA
B
the proteins on the surface and that of the host
C
the enzymes carried by the virus
D
the protein’s in the hosts cytoplasm
Explanation: 

Detailed explanation-1: -Virus Entry Host range at a cellular level is determined by a combination of susceptibility, the ability of cells to allow entry of virions into the cytoplasm, and permissiveness, the capacity of cells to support cytoplasmic viral replication.

Detailed explanation-2: -Recognition of cell surface receptor(s) by virus particle determines the host range and tropism of cell and tissue infection and is the first step in the virus replicative cycle.

Detailed explanation-3: -The structural viral proteins are extremely important to the virus, so as to facilitate the transfer of the viral nucleic acid from one host cell to another. The proteins determine the antigenicity of the virus.

There is 1 question to complete.