In which parts of dicot root, casparian strips are present:

Options

A. Hypodermis
B. Endodermis
C. Pericycle
D. Cortex

Answer

To answer the question "In which parts of dicot root, casparian strips are present?", we can follow these steps:

### Step-by-Step Solution:

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

2. **Identify the Layers**:
- The outermost layer is the epidermis, followed by the cortex, which is further divided into the hypodermis (outer cortex) and the endodermis (innermost cortex).

3. **Locate the Endodermis**:
- The endodermis is the innermost layer of the cortex in dicot roots. It acts as a selective barrier regulating the flow of water and nutrients into the vascular system.

4. **Recognize the Casparian Strips**:
- Casparian strips are specialized structures found in the endodermis. They are formed by the thickening of the radial and tangential walls of the endodermal cells.

5. **Conclusion**:
- Therefore, the correct answer to the question is that Casparian strips are present in the **endodermis** of the dicot root.

### Final Answer:
Casparian strips are present in the **endodermis** of the dicot root.

---