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Question
Tobacco Mosaic Viruses (TMV) are
Tobacco Mosaic Viruses (TMV) are
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Solution
The correct option is A Rod shaped
Tobacco mosaic virus (TMV) is a positive-sense single stranded RNA virus, that infects a wide range of plants, especially tobacco and other members of the family Solanaceae. The infection causes characteristic patterns, such as "mosaic"-like mottling and discoloration on the leaves. TMV was the first virus ever to be discovered. Although it was known from the late 19th century that an infectious disease was damaging tobacco crops, it was not until 1930 that the infectious agent was determined to be a virus. Tobacco mosaic virus has a rod-like appearance. Thus, option A is correct. TMV is not spherical and not thread like structure. Thus, other options are wrong.
Tobacco mosaic virus (TMV) is a positive-sense single stranded RNA virus, that infects a wide range of plants, especially tobacco and other members of the family Solanaceae. The infection causes characteristic patterns, such as "mosaic"-like mottling and discoloration on the leaves. TMV was the first virus ever to be discovered. Although it was known from the late 19th century that an infectious disease was damaging tobacco crops, it was not until 1930 that the infectious agent was determined to be a virus. Tobacco mosaic virus has a rod-like appearance. Thus, option A is correct. TMV is not spherical and not thread like structure. Thus, other options are wrong.
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