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Who discovered viroids?

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in Biology – Class 11 by (272k points)
Who discovered viroids?

(a) T.O. Diener

(b) Alexander Flemming

(c) W.M. Stanley

(d) Robert Hooke

I have been asked this question in an interview for internship.

This interesting question is from Biological Classification topic in portion Biological Classification of Biology – Class 11

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Correct option is (a) T.O. Diener

To elaborate: T.O. Diener discovered viroids in 1971. He found that these infectious agents are smaller than viruses and are the main cause for potato spindle tuber disease.

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