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Question

Crown Gall is due to ______.

A
Agrobacterium
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B
Mycobacterium
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C
Clostridium
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D
Erwinia
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Solution

The correct option is A Agrobacterium
Crown gall disease is a plant disease that is caused by the bacterium Agrobacterium tumefaciens. It results in the overgrowth appearing as knob-like swellings or galls on stems, roots, trunks, and branches. It affects mostly woody shrubs and herbaceous plants like grapes, raspberries, blackberries, and roses.
Thus, the correct answer is 'Agrobacterium.'

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