What is the number of Barr bodies seen in cells of person with Klinefelter syndrome?: (A) 0, (B) 1, (C) 2, (D) 3
Answer is B. Number of Barr bodies = (N - 1)
N is the number of x chromosomes.
Klinefelter syndrome - 47 XXY
Barr bodies = (2 - 1) = 1