Select the odd one out w.r.t. ex-albuminous seed.

Options

A. Groundnut
B. Beans
C. Barley
D. Pea

Answer

To solve the question of selecting the odd one out with respect to ex-albuminous seeds, we will follow these steps:

### Step-by-Step Solution:

1. **Understanding Ex-albuminous Seeds**:
- Ex-albuminous seeds are those seeds in which the endosperm is completely absorbed by the embryo during development. This means that after the seed matures, there is no endosperm left.

2. **Analyzing the Options**:
- We have four options to consider: Groundnut, Beans, Barley, and Pea.

3. **Evaluating Each Option**:
- **Groundnut**: This is an ex-albuminous seed because the endosperm is fully absorbed by the embryo.
- **Beans**: Similar to groundnut, beans are also ex-albuminous seeds as the endosperm is absorbed.
- **Barley**: This is not an ex-albuminous seed. Barley retains its endosperm, which serves as a food reserve for the seed.
- **Pea**: Peas are classified as ex-albuminous seeds since the endosperm is absorbed by the embryo.

4. **Identifying the Odd One Out**:
- From the analysis, we see that Groundnut, Beans, and Pea are all ex-albuminous seeds, while Barley is not. Therefore, Barley is the odd one out.

5. **Conclusion**:
- The answer to the question is Barley, as it is the only option that is not an ex-albuminous seed.

### Final Answer:
- **Barley** is the odd one out with respect to ex-albuminous seeds.

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