Sex chromatin was detected during examination of a man's buccal epithelium. It is characteristic of the following chromosome disease:

Answer options

1. Klinefelter’s syndrome
2. Turner’s syndrome
3. Down’s disease
4. Triple X syndrome
5. Hypophosphatemic rickets

Explanation

Sex chromatin was detected during examination of a man's buccal epithelium. It is characteristic of the following chromosome disease: Sex chromatin is DNA material only found in nuclei of female cells (esp as Barr body) and believed to represent the X chromosome. Finding it in a man indicates Klinefelter’s syndrome with karyotype is XXY.