In ______ female gametophytes stop their at 8 nucleate stage

Options

A. cleistogamous
B. chasmogamous
C. gymnosperms
D. angiosperms

Answer

**Step-by-step Solution:**

1. **Identify the Female Gametophyte**: The question asks about a specific female gametophyte that stops at the 8-nucleate stage. The female gametophyte in flowering plants is known as the embryo sac.

2. **Understanding the Structure of the Embryo Sac**: The embryo sac is made up of several cells, specifically:
- 3 antipodal cells
- 2 polar nuclei (which are usually found in the central cell)
- 1 egg cell and 2 synergids (located at the micropylar end)

3. **Count the Nuclei**: When we add these together:
- 3 (antipodal cells) + 2 (polar nuclei) + 3 (1 egg cell + 2 synergids) = 8 nuclei in total.

4. **Context of the Embryo Sac**: The embryo sac is found in angiosperms, which are flowering plants. This is where fertilization occurs.

5. **Conclusion**: Therefore, the correct answer to the question is "angiosperms."

**Final Answer**: In **angiosperms**, female gametophytes stop their development at the 8-nucleate stage.

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