Which disorder is characterized by having only one X chromosome in the 23rd pairing?
A) Turner syndrome
B) Tay-Sachs
C) Klinefelter syndrome
D) PKU

Question

Quizplus · Accepted Answer

Turner syndrome is caused by the complete or partial absence of one of the X chromosomes in females, resulting in a range of physical and developmental features. Tay-Sachs is a rare genetic disorder caused by the absence or deficiency of an enzyme needed to breakdown a fatty substance in the nervous system. Klinefelter syndrome is a genetic disorder in males caused by having an extra X chromosome in the 23rd pair. PKU (phenylketonuria) is a genetic disorder caused by the inability to properly break down the amino acid phenylalanine.

Which Disorder Is Characterized by Having Only One X Chromosome