XYYY syndrome, also known as 48,XYYY, is a chromosomal d... - dofaq.co
xyyy syndrome

XYYY syndrome, also known as 48,XYYY, is a chromosomal d...

wikipedia - 12 Apr 2021
XYYY syndrome, also known as 48,XYYY, is a chromosomal disorder in which a male has two extra copies of the Y chromosome. The syndrome is exceptionally rare, with only twelve recorded cases. The phenotype of the syndrome is heterogeneous, but appears to be more severe than its counterpart XYY syndrome. Common traits include borderline to mild intellectual disability, infertility, radioulnar synostosis, and in some cases tall stature.

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