In cell division, the spindle fibres are formed from ……………………….

Explanation

**Step-by-Step Solution:**

1. **Understanding Spindle Fibers**: Spindle fibers are essential structures that form during cell division. They play a crucial role in the separation of chromosomes by attaching to the kinetochores of chromosomes and pulling them towards opposite poles of the cell.

2. **Identifying the Source of Spindle Fibers**: The formation of spindle fibers is primarily associated with a specific cell organelle known as the centriole.

3. **Role of Centrioles**: Centrioles are cylindrical structures that are rich in microtubules. They are typically found in pairs within the cell and are crucial for organizing the microtubules that form the spindle apparatus during cell division.

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