Pith in dicot root/monocot root is often absent.

Answer

### Step-by-Step Solution:

1. **Understanding Pith**:
- Pith, also known as medulla, is a central part of the plant stem or root that is typically composed of large parenchymatous cells. These cells often have intercellular spaces, allowing for storage and transport of nutrients.

2. **Pith in Dicot Roots**:
- In dicot roots, the pith is generally not well-developed or may be completely absent. This is a characteristic feature of dicotyledonous plants.

3. **Pith in Monocot Roots**:
- In contrast, monocot roots usually have a well-defined pith. This is an important distinction between the two types of plants.

4. **Conclusion**:
- Therefore, when asked whether pith is present or absent in dicot and monocot roots, we conclude that pith is absent in dicot roots and present in monocot roots.

5. **Final Answer**:
- Pith is absent in dicot roots.