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The tobacco plant has been made resistant to the tobacco mosaic virus by: 1. introducing T -DNA of Agrobactermm 2. introducing a gene for vims coat protein 3. introducing meristematic activity in somatic cells 4. applying newer generation pesticides to the crops |
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Answer» Tobacco mosaic virus (TMV) is a positive-sense single-stranded RNA virus species in the genus Tobamovirus 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 (hence the name). TMV was the first virus to be discovered. Although it was known from the late 19th century that a non-bacterial INFECTIOUS disease was damaging tobacco crops, it was not until 1930 that the infectious agent was determined to be a virus. It is the first pathogen identified as a virus. EXPLANATION:IF MY ANSWER IS CORRECT PLEASE MARK ME AS A BRAIN LEAST . |
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