Viroids Multiple Choice Questions(MCQs) And Answers

Viroids Multiple Choice Questions and Answers

1. Which among the following is not a difference between viruses and viroids?

Viruses contain DNA whereas viroids don’t contain DNA

Viruses contain protein coat whereas viroids don’t contain protein coat

Viruses contain RNA whereas viroids don’t contain RNA

Viruses are found in bacteria, animals and plants but viroids only in plants

2. Who discovered viroids?

T.O. Diener

Alexander Flemming

W.M. Stanley

Robert Hooke

3. RNA of the viroids is of low molecular weight when compared to viruses.

True

False

4. Viruses are smaller than viroids.

True

False

5. Which of the following statements is wrong for viroids?

They lack a protein coat

They are smaller than viruses

They cause infections

Their RNA is of high molecular weight

6. Viroids differ from viruses in having: [NEET-2017]

RNA molecules without protein coat

DNA molecules with protein coat

DNA molecules without protein coat

RNA molecules with protein coat

7. Which of the following statements is incorrect? [NEET 2019]

Infective constituent in viruses is the protein coat

Prions consist of abnormally folded proteins

Viroids lack a protein coat

Viruses are obligate parasites

Viroids Multiple Choice Questions and Answers