NEET 2017 Botany Chromosomal Disorders MCQ Question with Solution

A disease caused by an autosomal primary non-disjunction is

A

Down syndrome

B

Klinefelter syndrome

C

Turner syndrome

D

Sickle cell anemia

Correct Answer

Option A

Detailed Explanation

Down syndrome is caused by trisomy of chromosome 21 due to nondisjunction during meiosis.

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