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Systematics Viruses Viroids Prions - Questions and Answers

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151. Which one does not have cellular structure?
A. Bacteriophage
B. PPLO
C. Bacterium
D. Diatom
Explanation:
152. A characteristic of viruses is
A. Without independent metabolism
B. With independent metabolism
C. Multiplication outside living cells
D. Culture in cell free medium
Explanation:
153. In viruses, the nucleic acid is
A. DNA
B. RNA
C. Both A and B
D. Either A or B
Explanation:
154. Bacteriophages kill
A. Fungi
B. All monerans
C. Bacteria
D. Viruses
Explanation:
155. Virus was discovered by
A. Stanley
B. Ivanowski
C. Herelle
D. Beijerinck
Explanation:
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