WebDecent Essays. 676 Words. 3 Pages. Open Document. Down syndrome is a genetic disorder in which a person is born with an extra copy of chromosome 21. There are three genetic variations that cause Down syndrome: Trisomy 21, Mosaic Trisomy 21 or Translocation Trisomy 21. There are many ways in which theses disorders affect the body. http://cord01.arcusapp.globalscape.com/down+syndrome+research+paper+introduction
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WebDown syndrome can be caused by one of three types of abnormal cell division involving chromosom 21. The three genetic variations include: Trisomy 21– More than 90% of Down syndrome cases are caused by trisomy 21. An extra chromosome (chromosome 21) originates in the development of either the sperm or the egg. When the egg and the spe http://downsyndrome-wakefield.net/wp-content/uploads/2016/02/Introduction-to-Downs-syndrome.pdf fireflies glow-worms and lightning bugs
Down syndrome research paper introduction by …
WebNov 5, 2024 · Introduction. Down syndrome is a genetic disorder that affects the mind and causes physical disability. It is caused by irregular division of cells which causes formation of a full or extra chromosome. A normal person should have a 21 pairs of chromosomes but, Down syndrome people have extra chromosomes (Suzedelis, 2006). WebIntroduction Down Syndrome is a developmental disorder caused by an error in the process of cell division. This disorder is characterized by an extra copy of chromosome 21 (trisomy) (Segal & Pesco, 2015). It is the most common chromosomal disorder and affects 1 in 700 live births (Ramia, Musharrafieh, Khaddage, & Sabri, 2014). WebFeb 3, 2024 · Mosaic Down syndrome. Some cells have 3 copies of chromosome 21, and other cells have only 2 copies. Translocation Down syndrome. This is when an extra piece or extra whole copy of chromosome 21 ... fireflies guitar chords owl city