In a dicot root, vascular cambium originates from

Options

A. Procambium
B. Cambium
C. Promeristem
D. Protoderm

Answer

To answer the question "In a dicot root, vascular cambium originates from," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Vascular Cambium**:
- Vascular cambium is a type of secondary meristem that plays a crucial role in the secondary growth of plants. It is responsible for the formation of secondary xylem (wood) and secondary phloem (bark).

2. **Location of Vascular Cambium**:
- In a dicot root, the vascular cambium is located between the xylem and phloem. It forms a ring-like structure that allows for the growth of these tissues.

3. **Identifying the Origin of Vascular Cambium**:
- The vascular cambium originates from the procambium during the early stages of plant development. The procambium is a primary meristem that gives rise to the vascular tissues.

4. **Evaluating the Options**:
- The options provided are:
1. Pro-cambium
2. Cambium
3. Pro-meristem
4. Poroderm
- Among these, the correct answer is **option 1: Pro-cambium**, as it is the tissue from which the vascular cambium develops.

5. **Conclusion**:
- Therefore, in a dicot root, the vascular cambium originates from the procambium.

### Final Answer:
In a dicot root, vascular cambium originates from **procambium**.

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