Natural cyitokinins are sytnhesised in regions where rapid cell divison occurs.

Answer

**Step-by-Step Solution:**

1. **Understanding Cytokinins**: Cytokinins are a class of plant hormones that play a crucial role in promoting cell division and growth in plants. They are essential for various developmental processes.

2. **Location of Synthesis**: Natural cytokinins are synthesized in specific regions of the plant where rapid cell division occurs. The primary sites of synthesis include:
- **Root Apices**: This is the most significant area for cytokinin production, where active cell division is taking place.
- **Shoot Buds**: Cytokinins are also produced in the shoot buds, which are regions where new growth is initiated.
- **Young Fruits and Developing Seeds**: These areas also synthesize cytokinins as they are involved in growth and development.

3. **Function of Cytokinins**: The synthesized cytokinins are transported from these regions to other parts of the plant, where they promote cell division, elongation, and differentiation.

4. **Conclusion**: Based on the information provided, the statement that "natural cytokinins are synthesized in regions where rapid cell division occurs" is true.

**Final Answer**: True

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