Down Syndrome

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"," while it still is called "Down's" in Europe.
There are three main types of . The vast majority of children with (approximately 95 percent) have an extra 21 chromosome. Instead of the normal number of 46 chromosomes in each cell, the individual with has 47 chromosomes. This condition is called trisomy 21. The second type is called translocation since the extra 21 chromosome is attached or translocated on to another chromosome, usually on chromosome 14, 21 or 22. If translocation is found in a child with , it is important to examine the parents' chromosomes, since in at least one-third of the cases, a parent may be a carrier of the translocation. This form of chromosome error is found in 3 - 4 percent of the individuals with . Another chromosome problem, called mosaicism, is noted in about 1 percent of individuals with . In this case, some cells have 47 chromosomes and others have 46 chromosomes. Mosaicism is thought to be the result of an error in cell division soon after ...

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in the preschool years to help children with develop skills as fully as possible. Along with benefiting from early intervention and special education, many children can be fully integrated in the regular classroom. The outlook for these children is far brighter than it once was. Many will learn to read and write and participate in diverse childhood activities both at school and in their neighborhoods. There are also many special programs for work opportunities for people who have . Many adults with live in a semi-independent group home community. They take care of themselves, but there are people to check in on them if they need to.
Although many theories have been developed, it ...

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