Chromosomal mutations can have a variety of effects on individuals. Klinefelter syndrome is a genetic disorder that occurs when a male has an extra copy of the X chromosome. Males who have this disorder exhibit characteristics such as producing little or no facial hair, having a less muscular body than other males, and sterility.
Karyotype of Klinefelter syndrome
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Which type of chromosomal mutation causes Klinefelter syndrome?
nondisjunction
translocation
deletion
insertion