Sample Questions — Viruses, Viroids, Prions and Lichens
Try 5 questions below from Viruses, Viroids, Prions and Lichens. Get all 20 in the MedicNEET app.
MCQ
Why are lichens sensitive to air pollution?
✅ Correct Answer: A
Lichens disappear in polluted environments due to their sensitivity to sulphur dioxide.
MCQ
Which disease is caused by a viroid?
✅ Correct Answer: A
Viroids are RNA particles discovered to cause this disease in plants.
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MCQ
Which type of nucleic acid is found in bacteriophages?
✅ Correct Answer: A
Bacteriophages commonly contain double-stranded DNA.
MCQ
Genetic material in plant viruses is mostly:
✅ Correct Answer: B
Most plant viruses carry RNA, unlike animal viruses that usually carry DNA.
MCQ
How do prions cause disease despite lacking nucleic acids?
✅ Correct Answer: B
Misfolded prions cause other proteins to misfold, disrupting brain function.
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