* Barr Bodies: Barr bodies are inactive X chromosomes. A normal female (XX) has one Barr body, while a normal male (XY) has none. Two Barr bodies indicate that there are three X chromosomes.

* No Y Chromosome: This confirms that the individual is genetically female, as the Y chromosome is essential for male development.

Klinefelter syndrome is a genetic condition where males have an extra X chromosome (XXY). The presence of two X chromosomes leads to the formation of two Barr bodies. While Klinefelter individuals are male due to the presence of the Y chromosome, they often exhibit some female characteristics and may have fertility issues.