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Biology · HSEXUAL REPRODUCTION IN FLOWERING PLANTS

हिन्दी

In angiosperms where pollen grains are shed at the 2-celled stage, at what point does the generative cell divide to form the two male gametes?

  1. Inside the microsporangium before dehiscence of the anther
  2. During the growth of the pollen tube in the stigma/style
  3. Only after the pollen tube enters into the degenerate synergid
  4. Inside the central cell prior to triple fusion

Correct answer · Option 2

During the growth of the pollen tube in the stigma/style

Explanation

In plants where pollen is shed at the 2-celled condition (vegetative and generative cell), the generative cell divides mitotically to form the two male gametes during the growth of the pollen tube in the stigma and style.
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