Botany - Biological Classification Question with Solution | TestHub
BotanyBiological ClassificationViruses, Viroids and PrionsEasy2 minPYQ_2020
BotanyEasysingle choice
Read the given statements that describe an 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 organism is characterized by the above characteristics?
Options:
Answer:
B
Solution:
Viroids are small, circular RNA molecules without a protein coat, and they consist only of nucleic acid( RNA). They require other helper viruses to establish an infection. The smallest viroid identified is small cytoplasmic RNA. It causes potato spindle tuber disease and they are smaller than viruses.
Stream:NTA_ABHYAS_NEETSubject:BotanyTopic:Biological ClassificationSubtopic:Viruses, Viroids and Prions
⏱ 2mℹ️ Source: PYQ_2020
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