NEETBotanyBiological Classification
Read the following Assertion and Reason and choose the correct option. Assertion: T.O. Diener discovered a new infectious agent that was smaller than viruses and caused potato spindle tuber disease. Reason: The RNA of the viroid was of low molecular weight.
Options
- ABoth Assertion and Reason are true and Reason is correct explanation of Assertion
- BBoth Assertion and Reason are true but Reason is not the correct explanation of Assertion
- CAssertion is true but the Reason is false
- DBoth Assertion are Reason are false
Correct answer
A. Both Assertion and Reason are true and Reason is correct explanation of Assertion
Step-by-step solution
In 1971, T.O. Diener discovered a new infectious agent that was smaller than viruses and caused potato spindle tuber disease. It was found to be a free RNA; it lacked the protein coat that is found in viruses, hence the name viroid. The RNA of the viroid was of low molecular weight.