Final answer:
Klinefelter syndrome commonly presents with speech and language delays, underdeveloped testes, enlarged breasts, reduced body hair, and reduced fertility. However, characteristics such as a large tongue and palm crease are not commonly seen in Klinefelter syndrome.
Step-by-step explanation:
Klinefelter syndrome is a chromosomal disorder that commonly presents with several characteristics. These include speech and language delays, underdeveloped testes, enlarged breasts, reduced body hair, and reduced fertility. However, some other characteristics such as a large tongue and palm crease are not commonly seen in Klinefelter syndrome.