Down+Syndrome

~DOWN SYNDROME~

What is it: Down Syndrome, or Trisomy 21, is a genetic disorder in which an extra copy of chromosome #21 is produced. This abnormality is not an inheritance, rather, it is a random error that occurs during cell division, known as nondisjunction. It results in an abnormal amount of chromosomes and the defects of Down Syndrome. 

Symptoms:

There are over 50 different symptoms of Down Syndrome, each varying in number and severity. A few of these examples are...


 * Short stature
 * Weak muscles
 * Irregular facial features
 * Heart defects
 * Mental retardation

Treatment: Unfortunately, there is no cure for Down Syndrome since it is a chromosomal disorder. Still, treatment is available to any health problems that come up. Special education and training is also offered to anyone who is mentally challenged. Regular visits with a doctor can also prove to be helpful.

Statistics: Down Syndrome occurs in about 1 of 750 births in the United States. The chance of having a child with Down Syndrome is higher for older women. Since it is random, it can happen to anyone.



Interesting Facts:
 * 1) Down Syndrome is the only trisomy compatible with life
 * 2) In 90% of the cases, the additional chromosome comes from the mother
 * 3) It is the most common genetic chromosomal disorder
 * 4) Down Syndrome was described in 1866 by John Langdon Down

Sources: [] [] []

To find out how trisomy occurs click [|here] and watch the animation To see a video on Down Syndrome click [|here] and press play

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