XyY definitions

Xyy

1) Sex chromosome
Found on https://www.crosswordclues.com/clue/xyy

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XYY

XYY: An extra Y chromosome in a male. See: XYY syndrome.
Found on http://www.medterms.com/script/main/art.asp?articlekey=38803

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XYY

[n] - (genetics) abnormal complement of sex hormones in a male who has two Y chromosomes
Found on http://www.webdictionary.co.uk/definition.php?query=XYY

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XYY

noun (genetics) abnormal complement of sex hormones in a male who has two Y chromosomes
Found on https://www.encyclo.co.uk/local/20974

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