NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

VIRUSES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Particles made up of proteins, nucleic acids, and sometimes lipids that can reproduce only by infecting living cells are called ____
A
viruses.
B
capsids.
C
prophages.
D
bacteria.
Explanation: 

Detailed explanation-1: -A virus is a tiny, infectious particle that can reproduce only by infecting a host cell. Viruses “commandeer” the host cell and use its resources to make more viruses, basically reprogramming it to become a virus factory. Because they can’t reproduce by themselves (without a host), viruses are not considered living.

Detailed explanation-2: -A virus is a nonliving particle made of proteins, nucleic acids, and sometimes lipids. Viruses can reproduce only by infecting living cells.

Detailed explanation-3: -Other viruslike particles called prions are composed primarily of a protein tightly integrated with a small nucleic acid molecule.

Detailed explanation-4: -A complete virus particle is called a virion. The main function of the virion is to deliver its DNA or RNA genome into the host cell so that the genome can be expressed (transcribed and translated) by the host cell.

Detailed explanation-5: -Viruses contain nucleic acid as RNA or DNA. These molecules possess all the genetic information of the virus.

There is 1 question to complete.