Tendon is formed of white fibres/ yellow fibres.

Explanation

**Step-by-Step Solution:**

1. **Understanding Tendons**: Tendons are connective tissues that link muscles to bones. They play a crucial role in facilitating movement by transmitting the force generated by muscles to the skeletal system.

2. **Composition of Tendons**: Tendons are primarily composed of collagen fibers. Collagen is a structural protein that provides strength and rigidity to various tissues in the body.

3. **Types of Fibers in Tendons**: There are two main types of fibers mentioned: white fibers and yellow fibers.

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