Where the formation of embryo sac occurs?

Options

A. Stigma
B. Ovule
C. Ovary
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Embryo Sac**: The embryo sac is a crucial structure in flowering plants, specifically involved in reproduction. It is the female gametophyte that develops within the ovule.

2. **Location of Formation**: The formation of the embryo sac occurs within the ovules of the plant. Ovules are the structures that eventually develop into seeds after fertilization.

3. **Process of Formation**: The formation of the embryo sac involves two key processes: megasporogenesis and megagametogenesis.
- **Megasporogenesis**: This is the process where megaspores are formed from the megasporangium (nucellus) of the ovule.
- **Megagametogenesis**: This is the subsequent development of the megaspores into the embryo sac.

4. **Surrounding Structures**: The ovules are surrounded by a protective layer known as the nucellus. This layer plays a role in the development of the embryo sac.

5. **Conclusion**: Based on the above information, the correct answer to the question "Where does the formation of the embryo sac occur?" is that it occurs in the ovules.

**Final Answer**: The formation of the embryo sac occurs in the ovules.

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