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What is the genetic reason for causing kleinfelter's?

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Dr. Golder Wilson
Clinical Genetics

In brief: Extra X in men

Klinefelter syndrome is usually caused by an extra x chromosome in males, changing their normal 46, xy chromosome constitution to 47, xxy.
The extra x causes tall stature with an asthenic build, underdevelopment of the testis and infertility. Sometimes there is more than one x, like 48, xxxy, often causing intellectual disability. The extra chromosome is a chance occurrence.

In brief: Extra X in men

Klinefelter syndrome is usually caused by an extra x chromosome in males, changing their normal 46, xy chromosome constitution to 47, xxy.
The extra x causes tall stature with an asthenic build, underdevelopment of the testis and infertility. Sometimes there is more than one x, like 48, xxxy, often causing intellectual disability. The extra chromosome is a chance occurrence.
Dr. Golder Wilson
Dr. Golder Wilson
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