Epiblast present in certain monocot embryo represents

Options

A. Covering of scutellum
B. Rudimentary second cotyledon
C. Decurrent base of scutellum
D. The second node of plumule.

Answer

To answer the question regarding what the epiblast present in certain monocot embryos represents, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Epiblast**: The epiblast is an immature part of the embryo found in certain monocot plants. It is a flap-like structure that surrounds the growing part of the cotyledon.

2. **Identifying its Role**: The epiblast is often referred to as a "rudimentary second cotyledon." This is because it bears similarities to the cotyledons found in dicot plants, even though it is not fully developed.

3. **Comparing Monocots and Dicots**: In dicot plants, there are typically two cotyledons that store food for the seed. In contrast, monocots usually have only one terminal cotyledon, known as the scutellum.

4. **Evaluating the Options**:
- **Option 1**: Covering of scutellum - Incorrect.
- **Option 2**: Rudimentary second cotyledon - Correct, as it aligns with the definition of the epiblast.
- **Option 3**: Decurrent base of scutellum - Incorrect.
- **Option 4**: Second node of plumule - Incorrect.

5. **Conclusion**: The correct answer is **Option 2: Rudimentary second cotyledon**.