Which of the following contains the actual genetic part of a sperm?

Options

A. Whole of it
B. Tail
C. Middle piece
D. Head

Explanation

To solve the question "Which of the following contains the actual genetic part of a sperm?" we will analyze the structure of a sperm and identify which part contains the genetic material.

### Step-by-Step Solution:

1. **Understand the Structure of a Sperm**:
- A sperm cell consists of three main parts: the head, the middle piece (or neck), and the tail.

2. **Identify the Head of the Sperm**:
- The head of the sperm is elongated and contains a nucleus. This is the part that is crucial for genetic information.

3. **Examine the Components of the Head**:
- The head has two important components:
- **Nucleus**: This is where the genetic material (DNA) is stored. It is dense and contains the genetic information that will be passed on to the offspring.
- **Acrosome**: This is a cap-like structure at the tip of the head that contains enzymes necessary for penetrating the outer layers of the ovum during fertilization.

4. **Analyze Other Parts of the Sperm**:
- **Middle Piece (Neck)**: This part contains mitochondria that provide energy (ATP) for the sperm's movement but does not contain any genetic material.
- **Tail**: The tail is responsible for the motility of the sperm, allowing it to swim towards the ovum. It does not contain any genetic material.

5. **Conclusion**:
- Since the nucleus in the head of the sperm contains the genetic material, the correct answer to the question is that the head of the sperm contains the actual genetic part.

### Final Answer:
The part of the sperm that contains the actual genetic material is the **head**.

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