In dicot root, cork cambium is formed by -

Options

A. Cortex
B. hypodermis
C. Pericycle
D. Epidermis

Answer

To determine the formation of cork cambium in dicot roots, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Dicot Roots**: Dicot roots typically have several layers, including the epidermis, cortex, endodermis, pericycle, and vascular tissues.

2. **Identify the Role of Cork Cambium**: Cork cambium is a type of lateral meristem that produces cork cells, which form the protective outer layer of the plant.

3. **Examine the Options Given**: The options provided are:
- Option 1: Cortex
- Option 2: Hypodermis
- Option 3: Pericycle
- Option 4: Epidermis

4. **Analyze Each Option**:
- **Cortex**: This is a layer of ground tissue that stores food and helps in the transport of water and nutrients.
- **Hypodermis**: This is not a typical layer in dicot roots; it usually refers to the layer beneath the epidermis in stems.
- **Pericycle**: This is a layer of cells located just inside the endodermis. It is responsible for the formation of lateral roots and also gives rise to the cork cambium in dicot roots.
- **Epidermis**: This is the outermost layer of cells that protects the root but does not form cork cambium.

5. **Conclusion**: Based on the analysis, the cork cambium in dicot roots is formed by the pericycle.

### Final Answer:
Cork cambium in dicot root is formed by the **pericycle**.

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