Question:
Viroids attack mainly _________
Viroids attack mainly _________
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Viroids lack capsid proteins and are exclusively plant pathogens.
Updated On: Mar 6, 2026
- plants, animals and bacteria
- animals only
- animals and plants
- plants only
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The Correct Option is D
Solution and Explanation
Step 1: Understanding viroids.
Viroids are the smallest known infectious agents composed solely of short strands of circular, single-stranded RNA without a protein coat.
Step 2: Host specificity.
Viroids are known to infect only plants, where they interfere with normal gene expression and cause plant diseases such as potato spindle tuber disease.
Step 3: Eliminating other options.
Animals and bacteria are not infected by viroids; animals are affected by viruses and prions instead.
Step 4: Conclusion.
Hence, viroids attack plants only.
Viroids are the smallest known infectious agents composed solely of short strands of circular, single-stranded RNA without a protein coat.
Step 2: Host specificity.
Viroids are known to infect only plants, where they interfere with normal gene expression and cause plant diseases such as potato spindle tuber disease.
Step 3: Eliminating other options.
Animals and bacteria are not infected by viroids; animals are affected by viruses and prions instead.
Step 4: Conclusion.
Hence, viroids attack plants only.
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