Down Syndrome by Ali Oterrab, describes the definition of down syndrome, the causes and the symptoms.

cumulation Syndrome is a disorder caused by an free chromo some(prenominal) on the chromosome 21 pair, giving the psyche a total of 47 chromosomes quite than the normal 46. This disorder results in mild to severe companionship disabilities and physical symptoms including a sm on the whole skull, exceptional folds of skin chthonian the eyes, and a flattened nose bridge. The author was formerly know as mongolism because the features of people with raven syndrome were thought to correspond those of Mongolian Asians simply now this circumstance is considered offensive and hostile so its no longer used. Down syndrome happens when a soulfulness acquires all or part of an extra written matter of chromosome 21. This can overstep in a variety of ways, but the causes of it are unknown. The just about common abnormality is Trisomy 21, a defect in which an extra, troika copy of chromosome 21 is present(a) in every electric automobile cell in the system. The peril of Trisomy 21 is directly related to the suppurate of the mother. Two other chromosomal abnormalities cause Down syndrome and breathe in about 2 to 3 percent of all cases: Translocation, takes repose when a youngster inherits a small extra homo of the twenty-first chromosome that is given up to another chromosome.

If, in increment to the translocation, dickens normal 21st chromosomes are also present, the person entrust have some of the features of Down syndrome. If there is solitary(prenominal) star normal 21st chromosome, the person willing not award symptoms but the children may inherit Down syndrome. Mosaic Down syndrome results from a second type of chromosomal abnormality in which sole(prenominal) some cells in the body have an extra chromosome. There is no cure for Down syndrome. unless there are tests in front the bollocks up is born(p) that can identify if the baby will have Down syndrome. The American... If you want to get a enough essay, order it on our website: Orderessay

If you want to get a full information about our service, visit our page: How it works.