NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

VIRUSES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is NOT used as a criterion to classify viruses?
A
biochemical tests
B
morphology
C
nucleic acid
D
size
Explanation: 

Detailed explanation-1: -The order of presentation of virus families and genera follows four criteria: (1) the nature of the viral nucleic acid; (2) the strandedness of the nucleic acid; (3) the use of a reverse transcription process (DNA or RNA); and (4) the positive or negative sense of gene coding on the encapsidated genome.

Detailed explanation-2: -While the agar media-based methods and biochemical tests are used for identifying bacteria and fungi, they aren’t developed for identifying virus and can only be used for organisms that are culturable.

Detailed explanation-3: -Non living structures. Non-cellular. Contain a protein coat called the capsid. Have a nucleic acid core containing DNA or RNA (one or the other-not both) Capable of reproducing only when inside a HOST cell.

There is 1 question to complete.