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In which genetic condition, each cell in the affected person, has three sex chromosomes XXY?
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Klinefelter's syndrome
Klinefelter's syndrome is a genetic condition in which each cell in the affected person has three sex chromosomes XXY. It is caused due to the presence of an additional copy of X-chromosome resulting into a karyotype of $47, \mathrm{XXY}$. Such individuals are sterile.
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