Class 12 Biology Ecology Kingdom - Monera And Viruses
Which of the following statements is worng for viroids
(a)
They are smaller than viruses
(b)
They cause infections
(c)
Their RNA is of high molecular weight
(d)
They lack a protein coat
Correct answer: (c) 
Solution: Viroids are infectious, non-protein-coding, highly structured with small circular RNA's, which have the ability to replicate autonomously. These contain RNA of low molecular weight and induce diseases in higher plants.

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