Final answer:
Klinefelter syndrome is a genetic disorder that affects males due to an extra X chromosome. Common symptoms include reduced fertility, small testes, enlarged breasts, and reduced body hair. Intellectual disability, delayed speech, and learning disabilities may also occur.
Step-by-step explanation:
Klinefelter syndrome is a genetic disorder that occurs in males due to an extra X chromosome (47, XXY). The effects of Klinefelter syndrome can vary, but some common symptoms include reduced fertility, small testes, enlarged breasts, and reduced body hair. Individuals with Klinefelter syndrome may also experience intellectual disability, delayed speech, and learning disabilities. However, mental breakdowns, abnormally long hair, and discolored skin are not typically associated with Klinefelter syndrome.