Down Syndrome

Payel Patel Feb,08,2010 bolt down Syndrome Term Paper - Dental hygiene overmaster syndrome affects mint of all ages, races and economic levels. It is the most a great deal occurring chromosomal mental defectiveness found in serviceman (About waste, 2001). Each socio-economic class, one sister in every 800 births in the United States is born with pass syndrome. Of the approximately four cardinal births in the United States per year 5,000 newborns with kill syndrome can be expected (Buxton & Hunter, 1999). in that respect atomic number 18 both physical and orofacial features that argon characteristic of eat syndrome. umpteen another(prenominal) health and dental concerns are associated with those who have cut syndrome and alas there is no known effective medical intercession available at this time. John Langdon Down who published an straight description of a person with Down syndrome discovered Down syndrome in 1866, although he did not know the cause of the syndrome. He was then termed the father of the syndrome (About Down, 2001). to the highest degree a century aft(prenominal) in 1959, Down syndrome was associated with an extra chromosome. A person with Down syndrome has 47 chromosomes whereas a normal individual has 46. The excess genic material from this extra chromosome is in the form of additional genes on the 21st chromosome, resulting in the characteristics of Down syndrome.

Most of all the cases of Down syndrome occur because there are three copies of the 21st chromosome, so therefore Down syndrome is often referred to as trisomy 21 (About Down, 2001). there are three different types of Down sy! ndrome. The three forms are trisomy 21, translocation, and mosaicism. It is important to distinguish what type the youngster has, as the light across of the parents having another child with the syndrome depends on which form their child has. In one of the forms, the degree to which the child shows the characteristics of the syndrome is affected (Selikowitz, 1997). Nearly 95 percent of the cases of Down syndrome have trisomy 21. This is where the child has an...If you urgency to take in a full essay, order it on our website: BestEssayCheap.com

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