Number of Barr bodies in XXXX female would be

Options

A. 1
B. 2
C. 3
D. 4

Explanation

To solve the question regarding the number of Barr bodies in an XXXX female, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Barr Bodies**:
Barr bodies are inactive X chromosomes in a female's cells. In general, for every two X chromosomes present, one will be inactivated and form a Barr body.

2. **Identify the Formula**:
The formula to calculate the number of Barr bodies is:
\[ \text{Number of Barr bodies} = \text{Total number of X chromosomes} - 1 \]

3. **Count the X Chromosomes**:
In the question, it is specified that the female has XXXX, which means there are 4 X chromosomes.

4. **Apply the Formula**:
Now, substitute the total number of X chromosomes into the formula:
\[ \text{Number of Barr bodies} = 4 - 1 = 3 \]

5. **Conclusion**:
Therefore, the number of Barr bodies in an XXXX female is 3.

### Final Answer:
The number of Barr bodies in an XXXX female would be **3**.

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