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Systematics Viruses Viroids Prions - Questions and Answers

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226. Which one contains double stranded RNA
A. TMV
B. Reovirus
C. ø x 174
D. Cauliflower Mosaic Virus
Explanation:
227. Retrovirus employs …. to make complementary DNA from RNA
A. DNA polymerase
B. Restriction endonuclease
C. Reverse transcriptase
D. Reverse polymerase
Explanation:
228. Prophage is viral genome
A. Freshly synthesised
B. Inoculated to a bacterium
C. Outside the host cell
D. Incorporated and integrated to host genome
Explanation:
229. Identify the correct pair having double stranded RNA
A. Cauliflower mosaic virus and Dahlia mosaic virus
B. Poliovirus and Wound tumour virus
C. Tobacco mosaic virus and Reovirus
D. Wound tumour virus and Reovirus
Explanation:
230. Potato leaf roll or leaf curl of Papaya are caused by
A. Fungi
B. Viruses
C. Bacteria
D. Nematodes
Explanation:
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