XXXY SYNDROME

a fairly uncommon chromosomal disorder wherein the young inherits the full complement of both female and male sex chromosomes. Inflicted people have a normal...

XANTHOMATOSIS

any of many disorders marked by a collection of too much extra lipids within the body because of a metabolic disruption. This leads to...

XXYY SYNDROME

a chromosomal disorder wherein a boy is born with a double complement of the normal XY chromosome pair. Skeletal deformations, abnormal genitalia, and cognitive...

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