NEET Biology question

Which of the following is not related to sex chromosome X or Y?

(A)Turner's syndrome
(B)Klinefelter's syndrome
(C)Down's syndromeCorrect
(D)Haemophilia and colourblindness

Answer: (C)

Solution

Down's syndrome arises from trisomy of autosome 21 (47 chromosomes with an extra chromosome 21) and has nothing to do with the X or Y chromosome. Turner's syndrome (a, 44+XO) and

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Question ID VK-119736