Principles of Inheritance and Variation Question 140

140. A disease caused by an autosomal primary non-disjunction is :

(a) Klinefelter’s Syndrome

(b) Turner’s Syndrome

(c) Sickel Cell Anemia

(d) Down’s Syndrome

Show Answer

Answer : d

Hints & Solution

(d) Down’s syndrome is caused by nondisjunction of $21^{\text{st }}$ chromosome i.e. Trisomy.



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