Which of the following viruses has DNA?

Tobacco Mosaic Virus

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Cauliflower Mosaic Virus

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Tomato Mosaic Virus

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Potato Mosaic Virus

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Solution

The correct option is B Cauliflower Mosaic Virus
Cauliflower Mosaic Virus is a DNA virus which causes infections in plants. CaMV contains a circular double-stranded DNA molecule which is interrupted by nicks that result from the actions of RNase H during reverse transcription. Cauliflower mosaic virus was the first plant virus shown to have a DNA genome. Tomato mosaic virus, potato mosaic virus and tobacco mosaic viruses are RNA viruses.
So, the correct answer is 'Cauliflower Mosaic Virus'.

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