NEET 2017 Biology question

Viroids differ from viruses in having :

(1)DNA molecules with protein coat
(2)DNA molecules without protein coat
(3)RNA molecules with protein coat
(4)RNA molecules without protein coatCorrect

Answer: (4)

Solution

Viroids (discovered by T.O. Diener) are free RNA molecules of low molecular weight that lack the protein coat which viruses possess; they cause diseases such as potato

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Question ID VK-092131