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Systematics Viruses Viroids Prions - Questions and Answers

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261. RNA retroviruses have a special enzyme that
A. Polymerises host DNA
B. Translates host DNA
C. Disintegrates host DNA
D. Transcribes viral RNA to cDNA
Explanation:
262. Spongiform encephalopathy is caused by
A. Prion
B. E. coli
C. Virus
D. Fungus
Explanation:
263. Franklin Conrat demonstrated that RNA is genetic material in
A. HIV
B. CMV
C. TMV
D. Mouse Sarcoma
Explanation:
264. Viroid causes
A. Cauliflower mosaic
B. Potato spindle mosaic
C. Tobacco mosaic
D. Tulip yellow mosaic
Explanation:
265. Potato Spindle Tuber disease is due to
A. Nematode
B. Virus
C. Bacterium
D. Viroid
Explanation:
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