NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

VIROIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following requires helper virus?
A
Virus
B
Viroid
C
Virusoid
D
Prion
Explanation: 

Detailed explanation-1: -This virus coinfect along with the vector virus and helps to replicate the genetic material by providing the enzyme for the replication. For example, hepatitis D virus which requires hepatitis B virus as helper virus which provides the outer protein to this vector virus(hepatitis D virus).

Detailed explanation-2: -Other acellular agents such as viroids, virusoids, and prions also cause diseases. Viroids consist of small, naked ssRNAs that cause diseases in plants. Virusoids are ssRNAs that require other helper viruses to establish an infection.

Detailed explanation-3: -Some examples of virusoids are: barley yellow dwarf virus satellite RNA and a helper Luleovirm: tobacco ring spot virus satellite RNA and a helper Nepovirus.

Detailed explanation-4: -a small particle of RNA associated with the larger RNA of some infectious plant viruses.

There is 1 question to complete.