what is the meaning and the manifestations of this
2007-07-12 19:12:24 · 3 answers · asked by COS 1 in Health ➔ Diseases & Conditions ➔ Infectious Diseases
Down syndrome is also known as trisomy 21. There is a lot of information online about it. This is a quite informative link.
http://en.wikipedia.org/wiki/Down_syndrome
2007-07-12 19:20:56 · answer #1 · answered by Beckers 6 · 0⤊ 0⤋
People with Down's Syndrome are retarded, have some facial and body forms that are consistent to them, and are notable for their sweet dispositions. I have a cousin who has Down's Syndrome, and at the time she was born it was believed they would only live to around 20. Now we know many people with Down's live to 50, 60, or even longer.
2007-07-13 02:27:54 · answer #2 · answered by Jeanne B 7 · 0⤊ 0⤋
the other term for that is trisomy 21, there is a genetic excess in the body. though the cause is unknown, they relate it to mother who gave birth at old age, like age > 40 y/o. manifestation are, simean crease, flat nose, low set ears,
2007-07-13 08:13:31 · answer #3 · answered by romzky 2 · 0⤊ 0⤋