In ovule, archesporial cell differentitaes from nucellus

Options

A. At chalzal region
B. Middle of nucellus
C. Laterally nea endothelium
D. Hypodermally in the micropylar region.

Answer

To solve the question regarding the differentiation of archesporial cells from the nucellus in an ovule, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Ovule Structure**:
- The ovule is a structure found in the female reproductive organ of flowering plants. It consists of several parts, including the nucellus, which is the tissue that surrounds the developing embryo sac.

2. **Identifying Archesporial Cells**:
- Archesporial cells are specialized cells that are part of the megasporangium. They are crucial for the formation of megaspores, which eventually develop into the female gametophyte.

3. **Location of Archesporial Cell Differentiation**:
- The differentiation of archesporial cells occurs in specific regions of the ovule. The question provides four options regarding where this differentiation takes place.

4. **Evaluating the Options**:
- **Option 1: At chelazal region** - This option is incorrect as archesporial cells do not differentiate here.
- **Option 2: Middle of nucellus** - This option is also incorrect; archesporial cells do not form in the middle of the nucellus.
- **Option 3: Laterally near endothelium** - This option is incorrect as well; it does not accurately describe the location of archesporial cell differentiation.
- **Option 4: Hypodermally in the micropilar region** - This is the correct option. Archesporial cells differentiate hypodermally in the micropilar region of the ovule.

5. **Conclusion**:
- Therefore, the correct answer to the question is that archesporial cells differentiate hypodermally in the micropilar region of the ovule.

### Final Answer:
The archesporial cell differentiates from the nucellus hypodermally in the micropilar region of the ovule.

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