Which of these parts of a sperm passes on the traits of the male to the zygote formed by this sperm?

Options

A. Tail
B. Head
C. Middle piece
D. Sperm membrane

Answer

To answer the question regarding which part of a sperm passes on the traits of the male to the zygote formed by this sperm, we can break down the structure of the sperm and its functions step by step.

### Step-by-Step Solution:

1. **Identify the Parts of the Sperm**:
- The sperm is composed of several parts: the head, neck, middle piece (body), and tail.

2. **Examine the Function of Each Part**:
- **Head**: The head contains the nucleus, which houses the genetic material (DNA). This is where the male's genetic traits are located.
- **Neck**: The neck connects the head to the middle piece and does not carry genetic information.
- **Middle Piece (Body)**: This part contains mitochondria that provide energy for the sperm's movement but does not contain genetic material.
- **Tail**: The tail is responsible for the movement of the sperm but does not carry any genetic information.

3. **Determine the Part Responsible for Genetic Traits**:
- Since the nucleus, which contains the genes and genetic traits of the male, is located in the head of the sperm, this part is responsible for passing on male traits to the zygote.

4. **Conclusion**:
- The part of the sperm that passes on the traits of the male to the zygote is the **head** of the sperm.

### Final Answer:
The head of the sperm passes on the traits of the male to the zygote formed by this sperm.

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