Choose the correct statement from the following .

Options

A. Embryo sac is formed by the reduction division in megaspore .
B. Typical female gametophyte is 6 - celled 8 nucleate.
C. The cells located at chalazal ends of embryo sac are called as antipodals
D. Filliform apparatus is a characteristic feature of antipodals.

Answer

To solve the question, we need to analyze each statement provided and determine which one is correct regarding the structure and formation of the embryo sac in plants.

### Step-by-Step Solution:

1. **Understanding the Formation of the Embryo Sac**:
- The embryo sac is formed from a functional megaspore that undergoes mitotic divisions.
- Initially, a megaspore mother cell (MMC) undergoes meiosis to produce four megaspores, out of which three degenerate, leaving one functional megaspore.

**Hint**: Remember that the embryo sac is derived from a single functional megaspore through mitotic divisions.

2. **Identifying the Structure of the Embryo Sac**:
- The embryo sac typically consists of 7 cells and 8 nuclei.
- The arrangement includes:
- 3 antipodal cells at the chalazal end.
- 2 synergids and 1 egg cell at the micropylar end (collectively known as the egg apparatus).
- 1 large central cell with 2 polar nuclei.

**Hint**: Focus on the number of cells and nuclei in the embryo sac, as this is a common point of confusion.

3. **Evaluating Each Statement**:
- **Statement 1**: "Embryo sac is formed by the reduction division in the megaspore."
- This is incorrect because the embryo sac is formed by mitosis, not reduction division.
- **Statement 2**: "This typical female gametophyte is a 6 celled, 8 nucleate stage."
- This is also incorrect because the correct count is 7 cells and 8 nuclei.
- **Statement 3**: "Cells located at the chalazal end are called antipodal cells."
- This statement is correct, as the cells at the chalazal end are indeed the antipodal cells.
- **Statement 4**: "The filiform apparatus is a characteristic feature of antipodal."
- This is incorrect; the filiform apparatus is a feature of the synergids.

4. **Conclusion**:
- The correct statement among the options provided is **Statement 3**: "Cells located at the chalazal end are called antipodal cells."

### Final Answer:
The correct statement is: **Cells located at the chalazal end are called antipodal cells.**