The number of barr bodies in normal male and normal female is

Options

A. 1,0
B. 1,1
C. 0,1
D. 0,2

Answer

### Step-by-Step Solution:

1. **Understanding Barr Bodies**:
- Barr bodies are inactivated X chromosomes found in the cells of females. They appear as dense spots at the periphery of the nucleus.

2. **Determining the Number of Barr Bodies**:
- The number of Barr bodies in a cell is calculated as one less than the number of X chromosomes present. This means:
- For a normal female with two X chromosomes (XX), the number of Barr bodies = 2 - 1 = 1.
- For a normal male with one X and one Y chromosome (XY), the number of Barr bodies = 1 - 1 = 0.

3. **Conclusion**:
- Therefore, in a normal male, the number of Barr bodies is 0, and in a normal female, the number of Barr bodies is 1.

4. **Final Answer**:
- The correct answer is: Normal male has 0 Barr bodies and normal female has 1 Barr body.