Assertion: Viroids are different from viruses
Reason: Viroids lack capsid but viruses posses capsid
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true and the reason is not the correct explanation of the assertion
3. The assertion is true but the reason is false
4. Both assertion and reason are false statements
Subtopic: Â Virus, Viroids & Prions |
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Assertion: Viruses are obligate parasites
Reason: Viruses cannot propagate outside the host cell
1. If both assertion and reason are true and the reason is the correct explanation of the assertion
2. If both assertion and reason are true and the reason is not the correct explanation of the assertion
3. If assertion is true but reason is false
4. If both assertion and reason are false statement
Subtopic: Â Virus, Viroids & Prions |
 82%
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Read the following statements about viroids:
(i) These were discovered by T.O Diener
(ii) These are of high molecular weight
(iii) Their RNA is of low molecular weight
(iv) May possess capsid
How many of the above statements are correct?
1. Two
2. One
3. Four
4. Three
Subtopic: Â Virus, Viroids & Prions |
 82%
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Assertion(A): Viruses are smaller than bacteria.
Reason(R): Viruses pass through bacteria-proof filters.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Â Virus, Viroids & Prions |
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Assertion(A): The RNA of the viroid is of low molecular weight.
Reason(R): This RNA is able to cause neurological diseases in humans.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Â Virus, Viroids & Prions |
 61%
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