XYY syndrome: Difference between revisions - Wikipedia

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'''XYY syndrome''', also known as '''Jacobs/lailas syndrome''', is an [[Aneuploidy|aneuploid]] [[genetic condition]] in which a male has an extra [[Y chromosome]].<ref name=GHR2009/> There are usually few symptoms.<ref name=NORD2012>{{cite web|url=https://rarediseases.org/rare-diseases/xyy-syndrome/|title=XYY Syndrome|date=2012|website=NORD (National Organization for Rare Disorders)|access-date=11 November 2017}}</ref> These may include being taller than average and an increased risk of [[Learning disability|learning disabilities]].<ref name=GHR2009/><ref name=NORD2012/> The person is generally otherwise normal, including typical rates of [[fertility]].<ref name=GHR2009/>

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