Steve was born a male with an extra X chromosome on the 23^rd pair. As result, he has reduced masculine characteristics, enlarged breasts, and is obese and excessively tall. Which disorder is likely to be diagnosed? A) PKU B) Down C) Klinefelter's D) Turner's

Question

Quizplus · Accepted Answer

The presence of an extra X chromosome in the 23rd pair is indicative of Klinefelter's syndrome, which is characterized by reduced masculine characteristics, enlarged breasts, obesity, and excessive tallness in males. PKU (phenylketonuria) is a genetic disorder where the body can't break down phenylalanine, Down syndrome is caused by an extra copy of chromosome 21, and Turner's syndrome is caused by missing or incomplete X chromosome in females.

Steve Was Born a Male with an Extra X Chromosome