Lateral roots develop from primordia originated by the division of

Options

A. Pericycle cells lying opposite to protoxylem points
B. Pericycle cells lying between to protoxylem points
C. Endodermal cells liying between two protoxylem points
D. Endodermal cells liying opposite to protoxylem points

Answer

To solve the question "Lateral roots develop from primordia originated by the division of," we will analyze the options provided and understand the anatomy of roots.

### Step-by-Step Solution:

1. **Understanding Lateral Roots**:
- Lateral roots are roots that grow from the main root (taproot) and extend outwards. They are essential for increasing the surface area for water and nutrient absorption.

2. **Origin of Lateral Roots**:
- Lateral roots develop endogenously, meaning they originate from within the root tissue rather than from the external surface.

3. **Identifying the Source of Lateral Roots**:
- The lateral roots arise from the pericycle, which is a layer of cells located just inside the endodermis of the root.

4. **Analyzing the Options**:
- **Option 1**: Pericycle cells lying opposite to proto xylem points.
- This is incorrect because lateral roots do not originate from cells opposite to proto xylem.
- **Option 2**: Pericycle cells lying between two proto xylem points.
- This is correct as lateral roots form from the pericycle located between proto xylem points.
- **Option 3**: Endodermal cells lying between two proto xylem points.
- This is incorrect; endodermal cells do not give rise to lateral roots.
- **Option 4**: Endodermal cells lying opposite to proto xylem points.
- This is also incorrect for the same reason as above.

5. **Conclusion**:
- Based on the analysis, the correct answer is **Option 2: Pericycle cells lying between two proto xylem points**.

### Final Answer:
**Option 2: Pericycle cells lying between two proto xylem points.**