Which of the following chromosomal disorders in humans is characterized by a karyotype of 47, XXY? MCQ with Answer and Explanation

Klinefelter syndrome is a sex chromosomal aneuploidy in males characterized by the karyotype 47, XXY. Individuals are phenotypically male but often exhibit feminine characteristics such as gynecomastia (development of breasts), sparse body hair, and are typically sterile due to underdeveloped testes. Down syndrome is trisomy 21 (47, +21), Turner syndrome is 45, X0, and Patau syndrome is trisomy 13.