Which was the first virus to be successfully crystalized?
Correct answer: A. TMV
- A. TMV
- B. Smallpox
- C. Poliovirus
- D. Adenovirus
Explanation
Tobacco mosaic virus was the first virus to be crystallized. It was achieved by Wendell Meredith Stanley in 1935.
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About Viruses
Viruses are acellular infectious particles made of genetic material enclosed by a protein capsid, sometimes with a lipid envelope. Their replication depends on a host cell and may follow lytic or lysogenic cycles, so viral structure and reproduction differ fundamentally from those of cellular organisms such as bacteria.
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