The number of autosomes in human female is
(a) 26 pairs
(b) 22 pairs
(c) 24 pairs
(d) 21 pairs

Options

A. 26 pairs
B. 22 pairs
C. 24 pairs
D. 21 pairs

Answer

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

### Step-by-Step Solution:

1. **Understanding Chromosome Count**:
- Humans have a total of 46 chromosomes.

2. **Pairs of Chromosomes**:
- These 46 chromosomes are organized into pairs, resulting in 23 pairs of chromosomes.

3. **Identifying Autosomes and Sex Chromosomes**:
- Out of these 23 pairs, 22 pairs are classified as autosomes.
- The remaining 1 pair consists of sex chromosomes, which in the case of a human female, are both X chromosomes (XX).

4. **Conclusion**:
- Therefore, the number of autosomes in a human female is 22 pairs.

5. **Final Answer**:
- The correct option is (b) 22 pairs.