Which of the following characteristic is absent in viruses?
A
Mutation
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B
Replication
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C
Production of energy
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D
All of the above
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Solution
The correct option is C Production of energy Viruses are obligate parasites. They are acellular and are only made of a genetic material surrounded by a protein capsid. Viruses use the host cellular machinery for survival and replication. They also undergo mutation within the host. They have no energy metabolism nor do they produce waste products. Hence they are considered non-living. Thus the correct answer is option C.