Down syndrome (DS or DNS), also known as trisomy 21, is a genetic disorder
caused by the presence of all, or part of a third copy of chromosome 21.
Down syndrome occurs when an individual has a full or partial extra copy of
Down syndrome is a genetic disorder caused when abnormal cell division results
in extra genetic material from chromosome 21. This genetic disorder, which ...
Mar 3, 2016 ... Down syndrome is a condition in which a person has an extra chromosome.
Chromosomes are small “packages” of genes in the body. Babies ...
People who have Down syndrome have learning difficulties, mental retardation, a
characteristic facial appearance, and poor muscle tone (hypotonia) in infancy.
National Association for Down Syndrome ... NDSS Employment Survey The
National Down Syndrome Society invites adults with Down syndrome (ages 18
Apr 22, 2016 ... Down syndrome (or Down's syndrome) is a chromosomal disorder caused by an
error in cell division that results in an extra 21st chromosome.
International federation of Down Syndrome organizations, seeking funds to assist
people with Down syndrome in less developed countries.
Down syndrome is a chromosomal disorder that causes intellectual disability and
other health problems. Get the facts on treatment options for your child.
May 5, 2016 ... Down syndrome is by far the most common and best known chromosomal
disorder in humans and the most common cause of intellectual ...