A person with XXXY has the genetic disorder called __________ syndrome.

Individuals with the genetic makeup of XXXY have a specific chromosomal pattern that is closely associated with Klinefelter syndrome. Klinefelter syndrome is a condition that results from the presence of an extra X chromosome in males, leading to the 47,XXY karyotype, but additional variants, such as XXXY, can also occur.

This syndrome is characterized by a range of physical, developmental, and reproductive challenges. Those affected may experience symptoms such as hypogonadism, reduced testosterone production, infertility, and often exhibit distinctive physical features, including taller stature and less facial hair compared to typical males.

The inclusion of an extra X chromosome in the 47,XXY or XXXY configurations alters normal sexual development and can lead to various health issues, including potential learning disabilities and an increased risk for certain medical conditions later in life.

Understanding the genetic basis of Klinefelter syndrome helps in recognizing its implications for patient management and counseling, making this answer appropriate in the context of the question asked.