Principles Of Inheritance And Variation Ques 122
122. A disease caused by an autosomal primary non-disjunction is :
(a) Klinefelter’s Syndrome
(b) Turner’s Syndrome
(c) Sickle Cell Anemia
(d) Down Syndrome
Show Answer
Answer : d
Hints & Solution
(d) Down’s syndrome is caused by nondisjunction of $21^{\text{st }}$ chromosome i.e. Trisomy.
BETA
