When does meiosis occur in gymnosperms and angiosperms?

Explanation

**Step-by-Step Solution:**

1. **Understanding Meiosis**: Meiosis is a type of cell division that reduces the chromosome number by half, resulting in the formation of gametes (sex cells). It is crucial for sexual reproduction in plants.

2. **Meiosis in Gymnosperms**: In gymnosperms, meiosis occurs during the formation of both male and female gametes. Specifically, it takes place in the microspore mother cells (microsporocytes) and megaspore mother cells (megasporocytes) as they undergo meiosis to produce microspores and megaspores, respectively.

3. **Meiosis in Angiosperms**: In angiosperms (flowering plants), meiosis primarily occurs in the formation of male gametes. This occurs in the anthers of flowers where microspore mother cells undergo meiosis to produce pollen grains (microspores).

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