Question: who came up with xyy theory?
Answer: The 47,XYY sex chromosome abnormality has been described in various settings6 9 since the first descriptions of a group of men with 47,XYY in 1965 by Jacobs et al10 who conducted a chromosome survey of male patients at the State Hospital in Carstairs, Scotland, and found that men with the 47,XYY karyotype were ...