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Systematics Viruses Viroids Prions - Questions and Answers

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271. A virus containing ssRNA that acts as template for DNA synthesis is known as
A. Polio virus
B. Retrovirus
C. Adeno virus
D. Pox virus
Explanation:
272. Which one does not occur in lytic life cycle of a virulent DNA phage?
A. The host cell lyses
B. New phages are released
C. Host cell produces a number of virions
D. Phage DNA integrates with host DNA
Explanation:
273. Which one has ssRNA?
A. ø x 174
B. T2 bacteriophage
C. Pox virus
D. TMV
Explanation:
274. Virus multiplies in
A. Dead tissue
B. Soil
C. Living tissue
D. Culture medium
Explanation:
275. Generic name should be written as
A. First letter capital and double word
B. First letter small and double word
C. First letter capital and single word
D. First letter small and single word
Explanation:
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