Question

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

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

Answer 1

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'.