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MHT CET Medical202626 April 2026Morning ShiftBiologySexual Reproduction in Flowering PlantsActual

Identify the correct ratio of microspore mother cells, vegetative cells, generative cells and male gametes produced in a microsporangium, if 40 pollen grains are released from it.

Options

  1. A1:1:1:1
  2. B1:2:2:1
  3. C2:1:1:4
  4. D1:4:4:8

Correct answer

D. 1:4:4:8

Step-by-step solution

One microspore mother cell (MMC) undergoes meiosis to produce 4 microspores, which develop into 4 pollen grains. Number of MMCs required to produce 40 pollen grains = 40 4 = 10 . Each pollen grain contains 1 vegetative cell and 1 generative cell. Number of vegetative cells in 40 pollen grains = 40 . Number of generative cells in 40 pollen grains = 40 . Each generative cell divides to form 2 male gametes. Number of male gametes produced = 40 2 = 80 . The ratio of microspore mother cells : vegetative cells : generati

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