Now, how does one even get Down Syndrome (Trisomy 21)? First off, in 1959 a French Pediatrician/Geneticist Professor Jerome Lejeune discovered that individuals with down syndrome have an extra chromosome. This means that is is not inherited. It occurs randomly during cell division early in fetal development. Chromosomes are thread like structures composed of DNA, they are present in every cell in the body and carry genetic information for that cell to develop. Human Cells divide in two ways the first way is mitosis where the body grows, one cell becomes two cells that have the same number and type of chromosomes at the parent cell. The second type is called meiosis and this happens when a...
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...affected by Trisomy 21. High emotions can impair the ability to communicate for the children. Cognitive development in children with Trisomy 21 show rigidity and poor adaptability. They usually have difficulties in shifting attention and seeing alternatives. They also have a need for consistent routines. All in all, Trisomy 21 will cause many delays in development.
In conclusion, Down Syndrome Trisomy 21 is large issue in todays world and more and more children are being born diagnosed with it. However, a lot of the information has been learned about this disease like, how it occurs genetically, all of the different diagnosis, what populations are most likely to have children with Down Syndrome trisomy 21, and how development is affected by Trisomy 21. So, with all of this information children with this disease are able live happy prosperous lives just as you and I.
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- Down syndrome is a chromosomal disorder that occurs when a baby is born with an extra chromosome in each of their cells. It is the most common of the chromosomal disorders. One in every 691 babies is born with DS (Down syndrome) and there are approximately over 400,000 people living with DS in the United States today. Although it is not genetic, it has been proven that mothers older than thirty-five are more likely to have a baby with Down syndrome. Individuals with Down syndrome have varied cognitive delays, meaning that they learn and develop slower than the average person, but they are still able to live normal lives.... [tags: Down syndrome, Chromosomal translocation]
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