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Q.
Which of the following is correct about the genome of viroid?
NTA AbhyasNTA Abhyas 2022
Solution:
In 1971, T.O. Diener discovered a new infectious agent smaller than viruses and caused potato spindle tuber disease. It was found to be a free RNA and it lacked the protein coat that is found in viruses, hence named as viroid. The RNA of the viroid was of low molecular weight.