Question

The cry-of-the-cat syndrome is due to a defect in chromosome __________

(a) 2

(b) 4

(c) 5

(d) 9

This question was posed to me in an international level competition.

This interesting question is from Gene Expression Control topic in portion Control of Gene Expression of Cell Biology

Answer 1

Right answer is (c) 5

Easiest explanation: The cry-of-the-cat syndrome arises due to a deletion in human chromosome 5. This was elucidated by Jerome Lejeune while he observed a newborn with facial malformations and a cry resembling that of a suffering cat.