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Question

Tobacco mosaic virus was first reported by

A
Watson and Crick
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B
Ivanoski
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C
Robert Brown
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D
Both A and B
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Solution

The correct option is B Ivanoski
Two scientists contributed to the discovery of Tobacco mosaic virus which was the first virus. In 1892 Ivanoski reported that extracts from infected leaves of tobacco were infectious even after filtration. In 1898, Beijerinck was the first to call virus, the infective agent of the tobacco mosaic. Thus the correct answer is option B.

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