Centrioles of sperm control

Options

A. Movement of tail
B. Haploid number of chromosomes
C. Help in fertilization
D. None of the above.

Answer

**Step-by-Step Solution:**

1. **Understanding the Role of Centrioles in Sperm:**
- Centrioles are cylindrical structures found in cells, and in sperm cells, they play a crucial role in the formation and function of the flagellum.

2. **Identifying the Functions of the Flagellum:**
- The flagellum is the tail-like structure of the sperm that enables its motility. This movement is essential for the sperm to swim towards the egg for fertilization.

3. **Analyzing the Given Options:**
- a. Movement of tail: This option relates directly to the function of the flagellum, which is controlled by the centrioles.
- b. Haploid number of chromosomes: This refers to the genetic content of the sperm, not directly related to the function of centrioles.
- c. Help in fertilization: While centrioles are involved in the process of fertilization indirectly, they do not control it.
- d. None of the above: This option can be eliminated since option a is correct.

4. **Conclusion:**
- Based on the analysis, the correct answer is option A, which states that the centrioles of sperm control the movement of the tail.

**Final Answer:**
- The centrioles of sperm control: **A. Movement of tail.**

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