Calyptrogen gives rise to

Options

A. root
B. root cap
C. plerome
D. periblem

Answer

**Step-by-Step Solution:**

1. **Understanding Calyptrogen**: Calyptrogen is a type of meristematic tissue found at the root apex of plants. It is specifically associated with the development of the root cap.

2. **Identifying the Role of Calyptrogen**: Calyptrogen is derived from the root apical meristem (RAM). The RAM is responsible for the growth of roots and gives rise to several primary meristems.

3. **Primary Meristems from RAM**: The RAM produces three primary meristems:
- Procambium: which gives rise to vascular tissues.
- Ground meristem: which forms the ground tissues.
- Protoderm: which develops into the epidermis.

4. **Calyptrogen's Function**: Among these, calyptrogen specifically contributes to the formation of the root cap. The root cap protects the growing tip of the root as it pushes through the soil.

5. **Conclusion**: Therefore, calyptrogen gives rise to the root cap, also known as calyptra.

**Final Answer**: Calyptrogen gives rise to the root cap.

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