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Viroids

T.O Diener 19...

Question

T.O Diener (1971) discovered a new infectious agent that was smaller than viruses. It was

A

Viruses

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B

Viroids

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C

Prions

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D

Lichen

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Solution

The correct option is A Viroids
T.O Diener (1971) discovered a new infectious agent that was smaller than viruses. It was viroid. The viroid caused potato spindle tuber disease. It lacked the protein coat around the genetic material RNA.
Thus, the correct answer is 'Viroids.'

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Similar questions

Q. Who discovered infectious agents even smaller than virus with only nucleic acid and no protein coat?

Q. Read the given statements that describe certain infectious particle.
(i) It was discovered by T.O. Diener and was found to be smaller than viruses.
(ii) It causes potato spindle tuber disease.
(iii) It is a free RNA particle which lacks the protein coat.
(iv) It has low molecular weight RNA as genetic material.
Which of the following is referred to here?

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(iv) T.O. Diener discovered viroids

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