Brace roots are

Options

A. Modified adventious roots developed from the base of the tap root
B. Modified adventious roots developed from the basal nodes of the stem
C. Unmodificd adventious roots developed from the basal nodes of the stem
D. Modified adventious roots developed from any part of the stem

Answer

**Step-by-Step Solution:**

1. **Understanding Brace Roots**: Brace roots are a type of root system that provides support and stability to certain plants. They are specifically modified roots that help in anchoring the plant to the ground.

2. **Identifying the Type of Roots**: Brace roots are classified as modified adventitious roots. Adventitious roots are roots that grow from unusual places, such as stems or leaves, rather than from the primary root.

3. **Location of Origin**: Brace roots develop from the basal node of the stem, which is the area where the stem meets the soil. This is crucial for their function as they provide additional support to the plant.

4. **Examples of Plants with Brace Roots**: A common example of a plant that has brace roots is maize (corn). In maize, these roots emerge from the base of the stem and help in stabilizing the plant.

5. **Functions of Brace Roots**: The primary functions of brace roots include:
- Providing lodging resistance, which helps prevent the plant from falling over.
- Assisting in water and nutrient uptake from the soil.
- Enhancing the overall integrity and stability of the plant structure.

6. **Selecting the Correct Option**: Based on the definitions and characteristics discussed, the correct option regarding brace roots is:
- **Option 2**: Modified adventitious roots that develop from the basal node of the stem.

**Final Answer**: Brace roots are modified adventitious roots that develop from the basal node of the stem.

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