Barr body is not seen in:: (A) Klinefelter syndrome, (B) Turner syndrome, (C) Normal female, (D) XXX syndrome
Answer is B. Barr body, or X chromatin Inactive X can be seen in the interphase nucleus as a darkly staining small mass in contact with the nuclear membrane known as the. Number of Barr bodies = number of X chromosome -1 , Turner syndrome patients, number of Barr body = 1-1=0.