Types of Poly-X Klinefelter syndrome

  • 48,XXYY
  • 48,XXXY (or tetrasomy)
  • 49,XXXXY (or pentasomy)

Source: NICHD (NIH)1

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References

  1. Source: NICHD (NIH): nichd.nih.gov/ health/ topics/ klinefelter/ conditioninfo/ Pages/ symptoms.aspx

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