KROK 1 Stomatology 2015 – Question 149 · KROK (Dentistry)
X-chromatin test of somatic cells is used for quick diagnostics of hereditary diseases caused by variations of sex chromosomes number. What is the karyotype of a male, whose cells mostly contain one X-chromatin body?
- A. 45, X0
- B. 48, XXXY
- C. 46, XY
- D. 49, XXXXY
- E. 47, XXY
Hint
Apply the rule that the number of Barr bodies equals the number of X chromosomes minus one.
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