Avery Sandberg was the first male to be known for having XYY syndrome. Since then, geneticists, socialists, and others have begun looking at prison populations for men who had XYY syndrome. Also Patricia Jacobs who is the author of the well known essay “Aggressive Behavior, Mental Subnormality and the XYY Male”, put out research for this genetic disorder. Her research concluded that only about one percent of males in institutions are completely positive for XYY. This is why XYY syndrome is also referred to as Jacob’s Syndrome. This genetic disorder is sometimes called “super male disease”, because men with XYY were thought to be overly aggressive and very
Avery Sandberg was the first male to be known for having XYY syndrome. Since then, geneticists, socialists, and others have begun looking at prison populations for men who had XYY syndrome. Also Patricia Jacobs who is the author of the well known essay “Aggressive Behavior, Mental Subnormality and the XYY Male”, put out research for this genetic disorder. Her research concluded that only about one percent of males in institutions are completely positive for XYY. This is why XYY syndrome is also referred to as Jacob’s Syndrome. This genetic disorder is sometimes called “super male disease”, because men with XYY were thought to be overly aggressive and very