Question

Which one of the following pair is not correct?

• A. Mangolian idiocy - 21${}^{st}$ chromosome
• B. Patau syndrome - 13${}^{th}$chromosome
• C. Cri- Du- Chat - 11${}^{th}$chromosome
• D. Edward syndrome - 18${}^{th}$ chromosome

Answer 1

Answer: (C)

Cri- Du- Chat - 11${}^{th}$chromosome

Cri-Du-Chat (Cat Cry) syndrome was first described by Lejeune in 1963 in France. The affected newborn cries-like mewing of a cat. This condition is due to a deletion in the short arm of the chromosome number 5.

So, the correct answer is option C.