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Question

The change that occurs in apex at the time of flowering is


A
Meristem gets destroyed
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B
Vegetative apex changes into reproduction apex
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C
Meristem decreases its activity
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D
All of the above
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Solution

The correct option is B Vegetative apex changes into reproduction apex
  • At the time of flowering, the vegetative shoot apex transforms into reproductive shoot apex (reproductive phase).
  • This transformation of shoot apex is induced by florigen and light.
  • The summit zone of reproductive shoot apex is active as the rate of cell division is greater and it forms stamens and carpels.
  • Whereas, the flank zone is less active in reproductive shoot apex and it forms sepals and petals. So, the correct answer is 'Vegetative apex changes into reproductive apex'.

    Biology

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