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Systematics Viruses Viroids Prions - Questions and Answers

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186. Circular single stranded DNA occurs in bacteriophage
A. T2, T4
B. ø x 174, M 13
C. T3, ø6
D. , Ts
Explanation:
187. Virus attacks a bacterium but neither multiplies nor the bacterium dies due to
A. Lysogeny
B. Adsorption
C. Assimilation
D. Viral stability
Explanation:
188. Viral capsid is made of
A. Carbohydrates
B. Lipid
C. Protein
D. All the above
Explanation:
189. Potato leaf roll disease is caused by
A. Mycoplasma
B. Virus
C. Microspores
D. Bacterium
Explanation:
190. Binomial nomenclature is
A. Not applicable to cyanobacteria
B. Not accepted by a number of countries
C. Universal with one specific name to each organism
D. Universal with two specific names to each organism
Explanation:
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