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XYY: An extra Y chromosome in a male. See: XYY syndrome.
47,XYY syndrome is characterized by an extra copy of the Y chromosome in each of a male's cells. Although males with this condition may be taller than ...
XYY -- Stereotype of the Karyotype Edward R. Friedlander, M.D. erf@kcumb.edu. I'm Ed. I'm a pathologist in Kansas City, and run the largest free personalized medical ...
Important It is possible that the main title of the report XYY Syndrome is not the name you expected. Please check the synonyms listing to find the alternate ...
Effects Physical traits. XYY syndrome typically causes no unusual physical features or medical problems. Persons with this syndrome may be slightly taller than average, or ...
xyy noun (genetics) abnormal complement of sex hormones in a male who has two Y chromosomes