Filliform apparatus is characteristic of

Options

A. aleurone cell
B. synergids
C. generative cell
D. nucellar embryo

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the characteristic of the filliform apparatus. We need to identify which cell type it is associated with in the embryo sac.

2. **Reviewing the Embryo Sac Structure**: The embryo sac consists of several types of cells, including antipodal cells, polar nuclei, egg cells, synergids, and the filliform apparatus.

3. **Identifying the Filliform Apparatus**: The filliform apparatus is a structure found specifically in the synergids of the embryo sac. It plays a crucial role in guiding the pollen tube towards the egg cell for fertilization.

4. **Analyzing the Options**:
- A. Alleleone cell: Not related to the embryo sac.
- B. Synergids: This is where the filliform apparatus is located.
- C. Generative cell: This is involved in the formation of sperm cells but does not contain the filliform apparatus.
- D. New cellular embryo: This refers to the developing embryo, not the filliform apparatus.

5. **Conclusion**: Based on the analysis, the filliform apparatus is characteristic of the synergids.

**Final Answer**: The filliform apparatus is characteristic of **synergids**.

---