The sex chromosome found only in males. When paired with and X chromosome from the mother, it produces a male child. Includes a single gene that throws a "master switch" triggering the testes to develop and prodice the principle male hormone, testosterone. Males are more likely to suffer from autism, color blindness, ADHD, antisocial personality disorder, alcohol dependency, and are more likely to actually commite suicide. In general, males are more socially and physically agressive.Morally, males tend to be concerned with their individual rights.