If only XX and XY… By Karin. First posted 1 November 2009. Content last reviewed 5 May 2014 Poster “If only XX = female and only XY = male then how do you account for X0, XXY, XYY, XXYY, XXXY, XY/X0, XX/X0, XX/XY,…” Tap the image to download a resizable PDF poster.
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