There are three types of Down syndrome: Trisomy 21, Mosaicism, and Translocation.
Trisomy 21 accounts for 95% of all cases and is caused by an error in cell division called "nondisjunction." This causes an embryo to have three copies of chromosome 21 instead of the usual two. Prior to or at conception, a pair of 21st chromosomes in either the sperm or the egg fails to separate. As the embryo develops, the extra chromosome is replicated in every cell of the body. Mosaicism accounts for 1% of all cases and occurs when nondisjunction of chromosome 21 takes place in one - but not all - of the initial cell divisions after fertilization. When this occurs, ...
... middle of paper ...
...re similarities rather than differences between families with and without a child with DS. Also, the study evidenced that having a child with a disability can actually provide families with a sense of hardiness and resilience, rather than having the opposite effect. Joosa and Berthelsen (2006) conducted a study on parenting a child with DS and identified the following categories from the mothers’ responses: the impact of having a
child with Down syndrome, family relationships, and acceptance. The mothers’ responses concerning their first reactions to having a child with DS were more negative and founded in shock and fear. However, as they raised their child, their attitudes seemed to shift to a more positive outlook as they realized the deeper meaning and satisfaction the child brought to their lives, along with their raised awareness of family and community support.
Need Writing Help?
Get feedback on grammar, clarity, concision and logic instantly.Check your paper »
- The purpose of this paper is to understand the importance of Down syndrome, identify the characteristics, identify the populations at risk, testing methods, the prevalence and the epidemiology of down syndrome and to discuss the abortion debate that is closely related to this condition. This topic is of interest to me because I work with this population on a daily basis as an occupational therapy assistant. Down syndrome, also known as trisomy 21, is defined as a chromosomal disorder that is associated with intellectual disability.... [tags: Down syndrome, Chromosomal translocation]
1140 words (3.3 pages)
- 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]
1211 words (3.5 pages)
- Down syndrome is a variance in chromosome 21 that manifests with cognitive delay, muscle hypotonia, characteristic facies, and short stature. (Glanzman, 2015 & Powell-Hamilton, 2012) The genetic disorder was named after the Physician John Langdon Down, who had originally in 1866 labeled those with the genetic abnormality as “Mongoloids”; Down indicated his choice of term for the children because of their appearance was allegedly similar to those from Mongolia and at the time it was believed that those who were of Mongolian decent were to have halted development.... [tags: Down syndrome, Chromosome]
1901 words (5.4 pages)
- It’s Wednesday and a mother just kissed her son goodbye as he walked into the classroom. The mother walks back to her car and proceeds to work. Her son has Down Syndrome, but attends a private school where special needs children have their own classroom. Her son Alex loves going to school to see his friends, like any child would. With having Down Syndrome, Alex has some rough days in the classroom. It’s 10:30am and Janice, Alex’s mother, receives a phone call. “Hi Janice, this is Mrs.... [tags: Inclusion Down Syndrome]
3251 words (9.3 pages)
- Down syndrome was discovered in the 1800’s by a man named John Langton Down. Down syndrome1 is a condition that occurs in the chromosomes. The syndrome affects the intellectual ability of the person effected, their facial appearance and causes hypotonia2. Children born with this usually experience different types of birth defects. These birth defects can include heart defects and intestine blockage. People with Down syndrome are also at a high risk of developing other medical conditions. Some medical conditions include gastro esophageal reflux3, celiac disease4, hypothyroidism5, and leukemia6.... [tags: Down syndrome, Chromosome, Cancer]
1323 words (3.8 pages)
- History: Down Syndrome was discovered in 1866 by a British physician named John Langdon Down, which is where the name Down Syndrome came from. This genetic disorder was first referred to as Mongolism. The name Down Syndrome did not start being used until the early 1970s. In 1959, a French Pediatrician/Geneticist Professor Jerome Lejeune had discovered that people with this disorder have one extra chromosome. In the 1960s when children with Down Syndrome were born, they were put into institutions right after birth.... [tags: Down syndrome, Chromosome]
1219 words (3.5 pages)
- Down Syndrome Although many theories have been developed, it is not known what actually causes Down syndrome. Some professionals believe that hormonal abnormalities, X-rays, viral infections, immunologic problems, or genetic predisposition may be the cause of the improper cell division resulting in Down syndrome. It has been known for some time that the risk of having a child with Down syndrome increases with advancing age of the mother; i.e., the older the mother, the greater the possibility that she may have a child with Down syndrome.... [tags: Down syndrome, Chromosomal translocation]
1260 words (3.6 pages)
- History: Down Syndrome was discovered in 1866 by a British physician named John Langdon Down, which is where the name Down Syndrome came from. This genetic disorder was first referred to as Mongolism. The name Down Syndrome did not start being used until the early 1970s. In 1959, a French Pediatrician/Geneticist Professor Jerome Lejeune had discovered that people with this disorder have one extra chromosome. In the 1960s when children with Down Syndrome were born, they were put into institutions right after birth.... [tags: Down syndrome, Chromosomal translocation]
709 words (2 pages)
- Sintia Echeverria 2248361 Down Syndrome Down Syndrome is a familiar term for my family and myself since at time of birth my youngest daughter, Valentina, was diagnosed with such condition. Down Syndrome is a congenital disorder arising from a chromosome defect, causing intellectual impairment and physical abnormalities. Each cell contains 23 pairs of chromosomes, half of which are inherited from each parent. Down syndrome occurs when an individual has a full or partial extra copy of chromosome 21.... [tags: Down syndrome, Chromosomal translocation]
722 words (2.1 pages)
- Understanding the Disease Down syndrome When an error occurs at chromosome 21 within in the genetic make of a human being, the person obtains distinct features such as slanted eyes, deeply creased hands, and a protruding tongue. At first glance this person may appear to be affected with some type of deformation, but they are often one out of the 4,000 people that are diagnosed with the disease Down syndrome. Down syndrome or DS is a chromosomal abnormality that frequently affects humans. Because the disease is genetic one can assume that it has been affecting the human body for years.... [tags: Down Syndrome, informative]
1878 words (5.4 pages)