Some seeds retain a part of endosperm as it is not completely used up during embryo development, while in some seeds, remnants of the nucellus are also persistent. Choose the option with example of the respective types of seeds.

Options

A. Black pepper, groundnut
B. Castor, black pepper
C. Pea, beet
D. Barley, groundnut

Answer

To solve the question, we need to identify the types of seeds based on the presence of endosperm and nucellus. Let's break it down step by step:

### Step 1: Understand the Types of Seeds
- **Albuminous Seeds**: These seeds retain some part of the endosperm because it is not completely used up during embryo development. Examples include wheat, maize, barley, and castor.
- **Non-Albuminous Seeds**: These seeds do not retain any endosperm as it is fully utilized by the developing embryo. Examples include pea and groundnut.
- **Seeds with Persistent Nucellus**: Some seeds have remnants of the nucellus, which is referred to as perisperm. Examples include black pepper and beet.

### Step 2: Analyze the Options
We need to find examples of seeds that fit the descriptions given in the question.

- **Option a: Black pepper, groundnut**
- Black pepper has persistent nucellus (perisperm).
- Groundnut is a non-albuminous seed (no residual endosperm).
- **Conclusion**: This option is incorrect as it mixes types.

- **Option b: Castor, black pepper**
- Castor is an albuminous seed (retains endosperm).
- Black pepper has persistent nucellus (perisperm).
- **Conclusion**: This option is correct.

- **Option c: Pea, beet**
- Pea is a non-albuminous seed (no residual endosperm).
- Beet has persistent nucellus (perisperm).
- **Conclusion**: This option is incorrect as it mixes types.

- **Option d: Barley, groundnut**
- Barley is an albuminous seed (retains endosperm).
- Groundnut is a non-albuminous seed (no residual endosperm).
- **Conclusion**: This option is incorrect as it mixes types.

### Step 3: Final Conclusion
The only option that correctly identifies an albuminous seed and a seed with persistent nucellus is **Option b: Castor, black pepper**.

### Final Answer
**Option b: Castor, black pepper**

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