Shoot system develops from ........ of the baby plant or embryo.

Options

A. cotyledons
B. roots
C. callus
D. plumule

Answer

To answer the question "Shoot system develops from ........ of the baby plant or embryo," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Embryo**: The embryo of a plant consists of two main parts: the plumule and the cotyledon. The plumule is the part that will develop into the shoot system, while the cotyledon is primarily involved in food storage and may also contribute to the root system.

2. **Identify the Function of Each Part**:
- **Plumule**: This is the part of the embryo that will grow into the shoot system of the plant. It is responsible for developing the stem and leaves.
- **Cotyledon**: This part is involved in food storage and can also contribute to the root system but does not develop into the shoot system.
- **Roots**: These develop from the lower part of the embryo and are responsible for anchoring the plant and absorbing water and nutrients.
- **Callus**: This is a tissue that forms in response to injury or in tissue culture and is not directly related to the embryo's development into a shoot system.

3. **Evaluate the Options**:
- Option A: Cotyledon - Not correct, as it does not develop into the shoot system.
- Option B: Roots - Not correct, as roots develop from the lower part of the embryo.
- Option C: Callus - Not correct, as callus is not a part of the embryo's development into a shoot system.
- Option D: Plumule - Correct, as it develops into the shoot system.

4. **Conclusion**: The shoot system of the baby plant or embryo develops from the plumule.

### Final Answer:
The shoot system develops from the **plumule** of the baby plant or embryo.

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