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प्रश्न
Write the characteristics of viruses.
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उत्तर
The various characteristics of viruses are:
- They are smaller and simpler than bacteria.
- They are ultramicroscopic and visible only under an electron microscope.
- They are considered to be on the boundary line of living and non-living things.
- They are obligate parasites and cannot live on their own.
- They cannot multiply on their own. They require living machinery to multiply.
- Viruses consist of genetic materials (DNA or RNA) surrounded by a protective coat of protein (capsid).
- Viruses are responsible for causing many dreadful diseases in plants, animals, and humans.
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