In Pteridophytes, meiosis occurs in

Options

A. Egg
B. Zygote
C. Antherozoids
D. Spore mother cells

Answer

**Step-by-Step Solution:**

1. **Understand the Concept of Pteridophytes**: Pteridophytes are the first terrestrial plants that possess vascular tissues, including xylem and phloem. They include ferns, horsetails, and clubmosses.

2. **Identify the Type of Division**: The question asks where meiosis occurs in pteridophytes. Meiosis is a type of cell division that reduces the chromosome number by half, resulting in the formation of haploid spores from diploid cells.

3. **Recognize the Sporophyte Generation**: In pteridophytes, the dominant generation is the sporophyte, which is diploid. The sporophyte produces spore mother cells (sporocytes) that undergo meiosis.

4. **Meiosis in Spore Mother Cells**: The spore mother cells (sporocytes) undergo meiosis to produce haploid spores. This is the key process in the life cycle of pteridophytes, leading to the formation of gametophytes.

5. **Formation of Gametophytes**: After meiosis, the haploid spores germinate to form gametophytes, which are the gamete-producing structures.

6. **Conclusion**: Therefore, in pteridophytes, meiosis occurs specifically in the spore mother cells.

**Final Answer**: Meiosis occurs in the spore mother cells in Pteridophytes.

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