Chromosome number can be doubled by using which of the following?

IAA

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Zeatin

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Colchicine

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Solution

The correct option is D Colchicine
Chromosome number can be doubled by using Colchicine. Colchicine is a chemical mutagen, concerned in the prevention of spindle apparatus formation. Due to this, chromosome number is doubled. It is obtained from the dried corms of Colchicum autumnale.
So, the correct option is 'Colchicine'.

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