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Biology · SEXUAL REPRODUCTION IN FLOWERING PLANTS

हिन्दी

The given diagram illustrates a mature dehisced anther. Which of the following events directly leads to the liberation of pollen grains as seen in the figure?

  1. Hydration and swelling of the tapetum
  2. Dehydration of the anther and breakdown of middle layers/stomium
  3. Mitotic division of vegetative cells
  4. Meiotic division of microspore tetrads

Correct answer · Option 2

Dehydration of the anther and breakdown of middle layers/stomium

Explanation

As the anthers mature and dehydrate, the microspores dissociate, the anther wall contracts and ruptures along the line of dehiscence, liberating pollen grains.
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