Down's Syndrome is a genetic disorder caused by trisomy in chromosome 21, which is in turn a result of post-miotic nondisjunction occuring. Trisomy 21 is a rare conditon, occuring in one in six hundred children. However, this is more likely to decrease once a mother is over forty. A physical charcteristic of a person with this disease is mental retardation, a flattened nose, a long toungue, a flat back of the head, broad hands with short fingers and small feet. These children also tend to have a shorter life span.
- ↑ NHS Down's Syndrome Characteristics. Reviewed: 30/04/2017 [cited:05/12/2017]. Available at: https://www.nhs.uk/conditions/downs-syndrome/characteristics/
- ↑ Kevin T.Patton, Gary A.Thibodeau (2010) Anatomy &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp; Physiology, 19th edition, US: Mosby, Inc.., an affiliate of Elsevier Inc. Chapter 6, page 1120.