PATHOLOGY

Detailed explanation-1: -The XYY phenomenon drew further attention because of its implications for sex differences. Even men who have but a single, normal Y chromosome are commonly considered more aggressive than women, who normally lack a Y chromosome.

Detailed explanation-2: -The XYY (supermale) chromosomal syndrome may act on the brain’s limbic system (which regulates man’s most primitive drives, including his impulses toward violence) and somehow help trigger violent criminal acts.

Detailed explanation-3: -XYY syndrome is a rare chromosomal disorder present at birth that affects only males. It is estimated to occur in approximately one in 1, 000 live births.