NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

VIRUSES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following statements about viruses is true?
A
Viruses are infectious particles that must use a “host” cell to produce new viruses
B
Viruses are considered living things because they reproduce
C
Viruses contain DNA, RNA, or both nucleic acids surrounded by a capsid, or protein coat
D
There are many different types of viruses. However, they can be very well recognized due to their singular shape and structure.
Explanation: 

Detailed explanation-1: -All viruses are obligate parasites; that is, they lack metabolic machinery of their own to generate energy or to synthesize proteins, so they depend on host cells to carry out these vital functions.

Detailed explanation-2: -Viruses can have either RNA or DNA in their core covered by a protein coat. Viruses do not have cell organelles, they are parasitic and require living cells to reproduce.

Detailed explanation-3: -Viruses are smaller than the bacteria. Viruses consists of a genetic material (DNA or RNA) as well as a protein coat. Viruses require the host cell to reproduce. They are inactive outside the host cell.

There is 1 question to complete.