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Down syndrome, Down's syndrome, or trisomy 21 is a chromosomal disorder caused by the presence of all or part of an extra 21st chromosome. It is named after John Langdon Down, the British Doctor Who described the syndrome in 1866. The disorder was identified as a chromosome 21 trisomy by Jérôme Lejeune in 1959. The condition is characterized by a combination of major and minor differences in structure. Often Down syndrome is associated with some impairment of cognitive ability and physical growth as well as facial appearance. Down syndrome in a baby can be identified with amniocentesis during pregnancy or at birth.
What else can I help you with?
Are children of Down Syndrome parents normal?
That would mean that the mother is the one with Down syndrome, since men with Down syndrome are sterile. There is a 50% chance that the child will have Down syndrome and 50% chance that child will be born without.
Does duodenal atresia always mean Down syndrome?
No, there is a 30-40% chance of Down Syndrome when duodenal atresia is diagnosed.
What does it mean to dream with a person with down syndrome?
Nothing.
What is the genetic disorder for having three 21 chromosomes?
down syndrome
If your newborn baby has only slightly slanted eyes -but is very active - could she have Down syndrome?
Just because a newborn baby has slightly slanted eyes does not mean that they have down syndrome. Doctors are able to diagnose down syndrome at birth.
How care for down syndrome children by family?
when you know what is a Down syndrome, try to be a pacient and full of love person, and the rest is easy, but..... is necessary to know, the Down syndrome is not a dissease is a fact, and it's mean a permanent devotion and work, is not a joke!
What is a chromosomal disorder that could result from nondisjunction?
Disorders, such as Down's Syndrome, are caused by nondisjunction.
What is the correct spelling 'Down syndrome' or 'Down's syndrome'?
Down syndrome is generally the preferred spelling, although Down's syndrome is sometimes used in American sources.
Is down's syndrome inherited?
Most cases of down syndrome are not inherited. Translocation Down syndrome can be inherited.
What are diagnosis for down syndrome?
Down syndrome IS the diagnosis.
Where is down syndrome on your body?
Down Syndrome Is In Your Brain.
Is A child with Down's Syndrome mentally retarded?
Yes Down's Syndrome will mean some mental retardation. However many are still quite capable of living a good life.
