A drug called colchicine interferes in mitosis during the spindle microtubule formation; it does so by
A
Arresting chromosome movement
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B
Breaking microtubules
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C
Thickening microtubles
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D
Arresting centriole movement
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Solution
The correct option is D Breaking microtubules Colchicine is an anticancerous drug obtained from Liliaceae plant Colchicum autumnale. This drug interferes with spindle formation and breaks microtubule thus preventing cellular division. It is also known as a mitotic poison.