How many chromosomes does a normal, mature, human sperm cell contain?

Options

A. 1
B. 2
C. 23
D. 46

Answer

To determine how many chromosomes a normal, mature human sperm cell contains, follow these steps:

### Step-by-Step Solution:

1. **Understand the Types of Cells**:
- Human cells can be classified into two types based on the number of chromosomes: diploid and haploid.
- Diploid cells contain two sets of chromosomes, while haploid cells contain one set.

2. **Identify the Chromosome Count in Humans**:
- Humans typically have a total of 46 chromosomes in their diploid cells. This includes 23 pairs of chromosomes.

3. **Recognize the Nature of Sperm Cells**:
- Sperm cells are male reproductive cells and are classified as haploid. This means they contain half the number of chromosomes compared to diploid cells.

4. **Calculate the Chromosome Count in Sperm**:
- Since sperm cells are haploid, they will contain half of the 46 chromosomes found in diploid human cells.
- Therefore, the number of chromosomes in a mature human sperm cell is 46 / 2 = 23.

5. **Conclusion**:
- The normal, mature human sperm cell contains 23 chromosomes.

### Final Answer:
The answer is **23 chromosomes**.

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