Turner's Syndrome is associated with :: (A) 45 chromosomes, (B) Presence of barr bodies, (C) Low FSH levels, (D) All of the above
Answer is A. 45 chromosomes Turners syndrome has karyotype 45X0. (Option "a" is correct) No. of Barr Bodies= Total No of X Chromosomes -- 1 No. of Barr Bodies in Turners = 1 -- 1 = 0 (Option "b- ruled out) In Turner's syndrome ovaries are replaced by Streak Gonads --> Decreased Estrogen levels -- Decrease in negative inhibition over FSH and therefore FSH levels raised. (Option "c- ruled out)