The Genetic Disorder Of Trisomy 21 - 1481 Words

The genetic disorder of Trisomy 21, or Down syndrome is one that has often interested me. I understand that many children born with his genetic disorder can in fact live a full life, often with assistance. When answering the question of what exactly Down syndrome is, a good definition can be one describing this disorder as a genetic condition where a person has an extra 21st chromosome. The typical person has 46 chromosomes, therefore the person born with Down syndrome has 47. This extra chromosome brings with it some physical and cognitive characteristics that include mild to severe cognitive delay, low muscle tone, stunted growth, an easily identifiable upward slant to the eyes, generally a deep crease across the center of the palm and the appearance of a flat face. We have to keep in mind however, that each person with Down syndrome is an individual and might have some of these characteristics to different degrees, or possibly none at all. Down syndrome is one of the most common genetic disorders in the United States with 1 out of close to every 700 births being linked to the disorder. When identifying the cause of Down syndrome, again we have to look at the extra, very important part of chromosome 21 that occurs in all or some associated with Down syndrome. Although there is no real scientific research showing that Down syndrome is caused by environmental factors or even the parents activities before or during pregnancy, research has shown that it increases inShow MoreRelated Down Syndrome Essay676 Words   |  3 Pagessyndrome 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.  Ã‚  Trisomy 21 occurs when an egg or sperm comes in with an extra copy of chromosome 21, then, once an embryo is formed and starts to develop, the chromosome is replicated in every single cell of the embryo. Trisomy 21 is the mostRead MoreGenetic Disorder And The Human Genome1081 Words   |  5 PagesGenetic Disorder is having to do with your health and body. Some people can get it and some people don’t get it every body is different. Now I am going to tell you what a Genetic disorder is, it’s an illness caused by changes or mutation in a person s DNA sequence. The mutation can be caused by an error of the DNA replication. It can also be caused by other things such as cigarette smoke and exposure to radiation which causes the change in the DNA sequence. Now I’m going to introduce the human genomeRead MoreDown Syndrome As A Cognitive Disorder Essay1315 Words   |  6 Pages Down syndrome as a cognitive disorder Down syndrome (DS) is relatively well known as a genetic disorder to the general public and children with this syndrome form one of the most readily identifiable groups of children with moderate to severe learning difficulties. It has been over 130 years since Langdon Down first described DS and 30 years since the presence of the defining extra copy of chromosome 21 was identified by Lejeune and his team of French geneticistsRead MoreEssay on Trisomy 2: A Gift or a Curse?878 Words   |  4 Pagesfactor of cognitive impairment, is a genetic disorder where three chromosomes 21 are inherited. In other words, a person with a disorder of Down syndrome receives an extra set of chromosome 21. Studies have shown, about 95%, on average, of Down syndrome victims inherit the extra chromosome 21, and the other percentage only receives an extra chromosome 21 in the muscle cells. It can range from mild to severe. The people who only receive an extra chromosome 21 in a specific location is called mosaicRead MoreDown Syndrom1638 Words   |  7 PagesIntroduction a) Who discovered Down syndrome b) What is Down syndrome Body research A. What Causes it and is it inherited? 1-Trisomy 21 2-Mosaic Down syndrome 3-Translocation Down syndrome B. How Down syndrome affects Kids 1-Physical features 2-Learning C. Risk factors 1-Advancing maternal age 2- Being carriers of the genetic translocation for Down syndrome 3-Having had one child with Down syndrome D. Health Issues 1- Health complications 2-Average lifeRead MoreA Brief Look at Down Syndrome670 Words   |  3 Pageswhen there is extra full or partial copy of chromosome 21. Down Syndrome is a chromosomal condition that causes low muscle tone, small stature, and a single deep crease across the center of the palm. Although, each person with Down Syndrome is a unique individual and may have these characteristics to different degrees. The cause of nondisjunction is still unknown, although scientists have made steps further to understanding this genetic disorder. For centuries, people with Down Syndrome were thoughtRead MoreThe Medical Condition Known As Down Syndrome970 Words   |  4 Pagessyndrome: Diagnosis and Treatment Down syndrome is commonly known by the public as a disease that causes physical and mental disabilities in people. Down syndrome is known by the scientific community as a genetic disorder of the twenty-first chromosome. As a result of this genetic disorder other systems of the body are also affected, this includes mental and physical disabilities. Down syndrome â€Å"is a lifelong condition†¦ that happens before birth† (WebMD, 2015). According to the National DownRead MoreApproximately three to four percent of babies born every year are born with some kind of genetic700 Words   |  3 PagesApproximately three to four percent of babies born every year are born with some kind of genetic disorder. A genetic disorder is described as an illness caused by an error in one’s genome, and is usually hereditary. To understand how these errors occur, one must first understand the basic concept of genes. Genes are the basic units of heredity and are made up of pieces of DNA that instruct the cell how to make specific proteins. Humans are estimated to have about 20,000 to 30,000 genes in their genomeRead MoreGeneral Information On Down Syndrome Essay814 Words   |  4 PagesDown syndrome is a genetic disorder most commonly caused by extra copies of chromosome 21. It occurs randomly during cell division in fetal development. This paper will discuss general information on Down syndrome, which will include the discovery of syndrome, the types and causes, the risk factors. Furthermore, this paper will also discuss the sign and symptoms, diagnosis and treatment. General background Down syndrome is a genetic disorder occurs in every individual regardless of gender, ethnicityRead MoreHistory of the Patau Syndrome1850 Words   |  7 PagesPatau Syndrome, otherwise known as T13 is a very rare and lethal genetic disorder in which a person has three copies of chromosome 13 instead of two. T13 is characterized by the presence of an assortment of heart and brain malformation in newborns. Children with the disease are often born with multiple birth defects that are normally associated with T13 but not limited to it, including small eyes, undescended testicles, cleft lip/palate, and they consistently exhibit signs of mental deficiency and/or