The first crystallized virus is
Correct answer: A. TMV
- A. TMV
- B. Bacteriophage
- C. Herpes
- D. HBV
Explanation
The first virus to be crystallized was the Tobacco Mosaic Virus (TMV), discovered by Wendell Stanley in 1935. TMV is a plant virus that infects tobacco and other members of the Solanaceae family, causing characteristic mosaic-like patterns on the leaves. Stanley was able to isolate and crystallize the virus, demonstrating that it was a distinct chemical entity composed of protein and RNA, rather than a simple toxin or living organism. This groundbreaking work provided the first clear evidence that viruses could be studied as biochemical particles, laying the foundation for modern virology and molecular biology.
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About Biodiversity and Variety of Life
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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