Hans is tall and has undeveloped testes and developed unusually large breasts for a man.What sex-linked disorder does he have?

Question

Quizplus · Accepted Answer

Hans has Klinefelter syndrome, a sex-linked disorder that occurs when a male is born with an extra X chromosome (XXY). This often results in undeveloped testes, causing lower levels of testosterone and unusual breast development. Fragile X syndrome and Down syndrome are not sex-linked disorders, and Turner syndrome occurs in females who are missing one X chromosome.

Hans Is Tall and Has Undeveloped Testes and Developed Unusually