Choose odd one out w.r.t. origin

Options

A. Interfascicular cambium
B. Intercalary meristem
C. Apical meristem
D. Intrafascicular cambium

Answer

To solve the question of choosing the odd one out with respect to origin among the options provided (Interfascicular cambium, Intercalary meristem, Apical meristem, Intrafascicular cambium), we can analyze each option step by step.

### Step-by-Step Solution:

1. **Understanding the Terms**:
- **Interfascicular Cambium**: This is a type of cambium that forms between the vascular bundles in dicot stems. It develops from the dedifferentiation of parenchyma cells.
- **Intercalary Meristem**: This is found at the base of leaves or internodes and allows for growth in length. It is derived from the primary meristematic tissue.
- **Apical Meristem**: This is located at the tips of roots and shoots and is responsible for the primary growth of the plant. It originates from the embryonic tissue.
- **Intrafascicular Cambium**: This cambium is found within the vascular bundles and is also derived from the dedifferentiation of parenchyma cells.

2. **Identifying the Origin**:
- The **Interfascicular cambium** and **Intrafascicular cambium** both arise from dedifferentiated parenchyma cells.
- The **Intercalary meristem** and **Apical meristem** are primary meristems that originate from the embryonic tissue and are responsible for growth.

3. **Finding the Odd One Out**:
- The **Intercalary meristem** and **Apical meristem** are both primary meristems, while the **Interfascicular cambium** and **Intrafascicular cambium** are secondary meristems derived from dedifferentiation.
- Therefore, the **Intercalary meristem** stands out as it is the only one that does not arise from dedifferentiation but rather from primary meristematic tissue.

### Conclusion:
The odd one out with respect to origin is the **Intercalary meristem**.

---