Number of autosomes in human primary spermatocyte is

Options

A. 46
B. 44
C. 23
D. 22

Explanation

To determine the number of autosomes in a human primary spermatocyte, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Chromosome Composition**:
- In humans, the total number of chromosomes is 46. This includes 22 pairs of autosomes and 1 pair of sex chromosomes (XX or XY).

2. **Identifying the Type of Cell**:
- A primary spermatocyte is a diploid (2n) cell that is derived from spermatogonia.

3. **Determining the Chromosome Number in Primary Spermatocyte**:
- Since the primary spermatocyte is diploid, it contains 2n chromosomes. For humans, this means it has 46 chromosomes.

4. **Calculating the Number of Autosomes**:
- Out of the 46 chromosomes, 2 are sex chromosomes (XX or XY), and the remaining are autosomes.
- Therefore, the number of autosomes = Total chromosomes - Sex chromosomes = 46 - 2 = 44.

5. **Conclusion**:
- The number of autosomes in a human primary spermatocyte is 44.

### Final Answer:
The number of autosomes in a human primary spermatocyte is **44**.

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