What are barr bodies?Discuss its significance.

Explanation

### Step-by-Step Solution:

1. **Definition of Barr Bodies**:
- Barr bodies are condensed, inactive X chromosomes found in the somatic cells of females. In humans, females have two X chromosomes (XX), and one of these X chromosomes undergoes a process called X-inactivation, resulting in the formation of a Barr body.

2. **Formation of Barr Bodies**:
- In females, since there are two X chromosomes, one X chromosome is randomly inactivated during early embryonic development. This inactivated X chromosome condenses and forms a Barr body, which is typically located near the nuclear membrane. In contrast, males have one X and one Y chromosome (XY), so they do not have Barr bodies.

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