NEET Biology question

A disease caused by an autosomal primary non-disjunction is

(A)Klinefelter's syndrome
(B)Turner's syndrome
(C)Sickle cell anaemia
(D)Down's syndromeCorrect

Answer: (D)

Solution

Down's syndrome arises from non-disjunction of the autosomal chromosome 21 pair during meiosis, resulting in trisomy 21. Klinefelter's (a) and Turner's (b) syndromes are both caused by non-disjunction

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Question ID VK-120192