Nucleus is located in which portion of sperm

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of Sperm:**
- The sperm is composed of several parts: the head, neck, middle piece, and tail. Each part has a specific function.

2. **Identifying the Head:**
- The head of the sperm is known to contain the nucleus. It is the part of the sperm that carries the genetic material.

3. **Examining Other Parts:**
- The neck contains a centriole, which is involved in the sperm's movement but does not contain the nucleus.
- The middle piece is filled with spirally arranged mitochondria, which provide energy (ATP) for the sperm's motility.
- The tail is primarily responsible for the movement of the sperm but does not contain the nucleus.

4. **Conclusion:**
- Since the nucleus is located in the head of the sperm, we can conclude that the correct answer to the question is the head.

**Final Answer:**
The nucleus is located in the head portion of the sperm.

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