Question

An 18 year old presents with physical characteristics of Klinefelter's syndrome. Which characteristic would not be expected with Klinefelter's syndrome?

1) Gynecomastia
2) Tall stature
3) Microcephaly
4) Testicular atrophy

Answer 1

Klinefelter's syndrome is a genetic disorder characterized by the presence of an extra X chromosome in males. While tall stature, gynecomastia, and testicular atrophy are common in Klinefelter's syndrome, microcephaly is not typically associated with this disorder.

Step-by-step explanation:

Klinefelter's syndrome is a genetic disorder that occurs in males and is characterized by the presence of an extra X chromosome (XXY). The physical characteristics of Klinefelter's syndrome typically include tall stature, gynecomastia (enlarged breasts), and testicular atrophy (reduced size of testes). However, microcephaly (abnormally small head) is not typically associated with Klinefelter's syndrome. Therefore, option 3) Microcephaly would not be expected with Klinefelter's syndrome.