Non-disjunction chromosome disorders.

Turner syndrome

Result of a missing chromosome (XO).

Girls appear normal before pewter, although they appear shorter and have a chunky build. At sexual maturity, there will be no menstruation no breast development, and no oval will be produced.

Kleinfelter syndrome

Result of an extra sex chromosome (XXY)

Individual suffer from mental deficiency with psychotic tendencies. Boys have a normal appearance before sexual maturity after sexual maturity, they will begin to produce high levels of sexual resulting in breast formation.

Jacobs

Result of an extra sex chromosome (XYY)

Low mental ability, generally taller than average

Triple X or super female

Result of an extra sex chromosome (XXX)

Individuals are fully fertile and produce normal. Children could have reduce mental ability and psychotic tendencies.

Edward syndrome

Result of an extra chromosome 18

Down syndrome

Result of an extra chromosome, 21

Patau syndrome

Result of an extra chromosome 13

Cry of a cat

Result of deletion of chromosome five

William syndrome

Deletion of chromosome seven

Cat eye syndrome

Duplication of a piece of chromosome 22