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Systematics Viruses Viroids Prions - Questions and Answers

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246. Parapatric species are species found in
A. Adjacent geographic ranges
B. Two ends of a geographical range
C. Same geographic area
D. Overlapping geographic areas
Explanation:
247. What is false?
A. TMV has double stranded RNA molecule
B. Most plant viruses are RNA viruses
C. Bacteriophage has a double stranded DNA molecule
D. Most animal viruses are DNA viruses
Explanation:
248. T.O. Diener discovered
A. Bacteriophase
B. Infectious protein
C. Free infectious DNA
D. Free infectious RNA
Explanation:
249. Which one is intracellular obligate parasite?
A. Bacteria
B. Slime moulds
C. Viruses
D. Blue-green algae
Explanation:
250. Virion is
A. Virus without protein coat
B. Enucleated virus
C. Prion
D. Virus
Explanation:
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