A single cotyledon in grass family which is situated towards one side of the embryonal axis is called as

Options

A. Epicotyl
B. Coleoptile
C. Hypocotyl
D. Scutellum

Answer

To answer the question regarding the single cotyledon in the grass family that is situated towards one side of the embryonal axis, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Type of Plant**:
- The question specifies the "grass family," which is part of the monocots (monocotyledons). Monocots are characterized by having one cotyledon.

2. **Understand the Structure of Monocot Embryos**:
- In monocots, the embryo typically consists of one cotyledon. This cotyledon is crucial for the initial stages of seedling development.

3. **Determine the Name of the Cotyledon**:
- In the grass family, the single cotyledon is specifically referred to as the "scutellum." This term is used to describe the cotyledon in monocot embryos, particularly in grasses.

4. **Locate the Position of the Scutellum**:
- The scutellum is situated on one side of the embryonal axis, which is a defining characteristic of its placement in the embryo.

5. **Conclusion**:
- Therefore, the answer to the question is that the single cotyledon in the grass family, which is situated towards one side of the embryonal axis, is called the **scutellum**.

### Final Answer:
The single cotyledon in the grass family which is situated towards one side of the embryonal axis is called the **scutellum**.

---