Proximal centriole of sperm is found in

Options

A. Head
B. Neck
C. Middle piece
D. Tail.

Answer

To answer the question "Proximal centriole of sperm is found in," we can follow these steps:

1. **Understanding Sperm Structure**: Sperm is composed of several parts: the head, neck, middle piece, and tail. Each part has specific functions and structures.

2. **Identifying the Parts**:
- **Head**: Contains the nucleus and acrosome (sperm cap).
- **Neck**: Connects the head to the middle piece and contains the proximal centriole.
- **Middle Piece**: Contains mitochondria that provide energy for movement.
- **Tail**: Responsible for the motility of the sperm.

3. **Locating the Proximal Centriole**: The proximal centriole is specifically located in the neck region of the sperm. It is a reduced form of the centrosome that remains intact during spermatogenesis.

4. **Conclusion**: Based on the structure of the sperm and the location of the proximal centriole, we can conclude that the proximal centriole of a sperm is found in the neck.

**Final Answer**: The proximal centriole of sperm is found in the neck.

---