Question

find the mismatch.
a klinefelter syndrome-xo
b hemophilia-sex linked
c down syndrome-trisomy 21
d all of the above

Explanation:

• Klinefelter syndrome is characterized by an extra X chromosome (XXY), while XO is associated with Turner syndrome.
• Hemophilia is a sex - linked disorder.
• Down syndrome is caused by Trisomy 21.

Answer:

A. Klinefelter syndrome - XO