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Question

If each microsporangium contains 75 pollen mother cells (PMCs), what is the maximum number of pollen grains produced by a Datura flower?


  1. 300

  2. 1200

  3. 6000

  4. 3000


Solution

The correct option is C

6000


No. of PMCs present in microsporangium = 75

No. of pollen grains produced on meiosis = 75 × 4 = 300

No. of pollen grains produced by dithecous anther = 300 × 4
No. of pollen grains produced by one stamen (tetrasporangiate) = 1200

Total no. of pollen grains produced by 5 stamens = 1200 × 5
             (Datura flower has 5 stamens)  = 6000

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