Give the main function of centrioles.

Explanation

### Step-by-Step Solution:

1. **Understanding Centrioles**: Centrioles are cylindrical structures found within the centrosome of a cell. They usually exist in pairs and are oriented at right angles to each other.

2. **Role of Centrosome**: The centrosome is an organelle that contains the centrioles. It plays a crucial role in cell division and organization of microtubules.

3. **Main Functions of Centrioles**:
- **Formation of Basal Bodies**: One of the primary functions of centrioles is to aid in the formation of basal bodies. Basal bodies are structures that give rise to cilia and flagella, which are important for cell movement and fluid movement across cell surfaces.
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