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Biology · SEXUAL REPRODUCTION IN FLOWERING PLANTS

हिन्दी

How many meiotic divisions and how many pollen mother cells (PMCs) are required to produce 200 pollen grains in a typical angiosperm?

  1. 50 meiotic divisions and 50 PMCs
  2. 200 meiotic divisions and 50 PMCs
  3. 200 अर्धसूत्री विभाजन और 50 PMCs
  4. 50 meiotic divisions and 200 PMCs

Correct answer · Option 1

50 meiotic divisions and 50 PMCs

Explanation

Each diploid pollen mother cell (PMC) undergoes one meiotic division to produce a microspore tetrad (4 microspores/pollen grains). Thus, to form 200 pollen grains, \( \frac{200}{4} = 50 \) PMCs and 50 meiotic divisions are required.
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