In __________ syndrome, the 23rd pair of chromosomes consists of an XXY pairing, resulting in reduced masculine characteristics and excessive height.
A) Klinefelter
B) Down
C) PKU
D) Turner

Question

Quizplus · Accepted Answer

Klinefelter syndrome is caused by an XXY pairing on the 23rd pair of chromosomes, leading to reduced masculine characteristics such as broader hips, less facial and body hair, and smaller testicles. Individuals with Klinefelter syndrome also tend to be taller than average. Down syndrome (B) is caused by an extra copy of chromosome 21, resulting in intellectual disability and distinctive facial features. PKU (C) is a genetic disorder that affects the body's ability to process an amino acid called phenylalanine, leading to intellectual disability and other health problems. Turner syndrome (D) is caused by a missing or incomplete X chromosome in females, resulting in short stature and infertility.

In __________ Syndrome, the 23rd Pair of Chromosomes Consists of an XXY