There are pairs of chromosome in human cell.

Options

A. 23
B. 46
C. 22
D. All are wrong

Answer

**Step-by-Step Solution:**

1. **Understanding Chromosomes**: Chromosomes are structures within cells that contain DNA and are responsible for carrying genetic information. In humans, chromosomes are found in pairs.

2. **Identifying Cell Types**: The cells in which chromosomes are paired are called somatic cells. These are the normal body cells, as opposed to gametes (sperm and egg cells).

3. **Counting Chromosomes**: In human somatic cells, there are a total of 46 chromosomes. This includes:
- 44 autosomes (non-sex chromosomes)
- 2 sex chromosomes (which determine the sex of the individual)

4. **Types of Sex Chromosomes**: In males, the sex chromosomes are XY, while in females, they are XX. However, the total number of sex chromosomes remains the same (2) in both genders.

5. **Calculating Pairs of Chromosomes**: Since chromosomes exist in pairs, to find the number of pairs, we divide the total number of chromosomes by 2:
- Total chromosomes = 46
- Number of pairs = 46 / 2 = 23 pairs

6. **Conclusion**: Therefore, the number of pairs of chromosomes in human somatic cells is 23.

**Final Answer**: There are 23 pairs of chromosomes in human somatic cells.

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