An alkaloid which arrests cell division is obtained from

Chrysanthemum

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Colchicum

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Dalbergia

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Crocus

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Solution

The correct option is D Colchicum
An alkaloid Colchicine is used in plant breeding for doubling the chromosome. It is obtained from the corms of Autumn Crocus ( Colchicum autumnale). It prevents assembly of microtubules. Therefore called as mitotic poison. As it is alkaloid it does not inhibit chromosome replication. Thus, the correct option is B.

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