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Question

Pollen extract stimulates the formation of fruit in the unpollinated carpel because extract has which of the following hormone?

A
Auxin
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B
Cytokinin
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C
Gibberellin
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D
Auxin and cytokinin
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Solution

The correct option is A Auxin
Pollen grain which are the male gametes will stimulate the formation if fruit in an unpollinated carpel because of the presence of auxin hormone. This condition is called as parthenocarpy which is more stimulated in the presence of auxin hormone.
So, the correct answer is 'Auxin'

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