Filliform apparatus is characteristic of

Options

A. synergids
B. egg
C. anther wall
D. antipodal cells

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the characteristic of the filliform apparatus. We need to identify which part of the plant reproductive structure it is associated with.

2. **Identifying the Options**: The options provided are:
- A) Synergids
- B) Egg
- C) Anther wall
- D) Antipodal cells

3. **Analyzing the Structure of the Egg Apparatus**: The egg apparatus consists of three main components:
- Two synergids
- One egg cell
- Three antipodal cells

4. **Locating the Filliform Apparatus**: The filliform apparatus is specifically found in the synergids. It is a structure that aids in the reception of the pollen tube during fertilization.

5. **Eliminating Incorrect Options**:
- **Egg**: The egg cell does not have a filliform apparatus.
- **Anther Wall**: The anther wall is part of the male reproductive structure and does not contain a filliform apparatus.
- **Antipodal Cells**: These cells are located at the chalazal end and do not have a filliform apparatus.

6. **Conclusion**: Since the filliform apparatus is a characteristic feature of the synergids, the correct answer to the question is **A) Synergids**.