Question

Which of the following is not an example of aneuploidy?

(a) Turner’s syndrome

(b) Down’s syndrome

(c) Phenylketonuria

(d) Klinefelter’s syndrome

I have been asked this question in an internship interview.

My question is taken from Inheritance and Variation Principles in division Principles of Inheritance and Variation of Biology – Class 12

Answer 1

Correct option is (c) Phenylketonuria

For explanation: Phenylketonuria is not an example of aneuploidy. The examples of aneuploidy are Down’s syndrome, Klinefelter’s syndrome, and turner’s syndrome where down’s and Klinefelter’s syndrome show trisomy condition while turner’s syndrome show monosomic condition.