Question

XXY chromosome complement is found in _____________.

• A. Down's syndrome
• B. Turner's syndrome
• C. Klinefelter's
• D. Super female

Answer 1

Answer: (C)

Klinefelter's

The individuals having this syndrom though have overall masculine development, yet the feminine development is not completely suppressed and sterile.
In 2A+XXX (47) condition, the females have usually normal genital organs, limited fertility and slight mental retardation. Higher doses X may give rise to more pronounced effects.
The males possessing 2A + XYY condition (47) show above-average height and subnormal intelligence. They are prone to psychopathic tendencies.