Down Syndrome Essay examples -- essays research papers fc

raze syndrome is a sustain fly caused by a genetic disorder that affects 350,000 populate in the unify States. It is caused by abnormalities in the genes and is non inherited, substance that pargonnts do non settle this onto their children. Genetics is the study of heredity or how certain traits ar passed from p bents to their children. Genes atomic number 18 the basic unit of heredity. Cells argon the building blocks of your body and to each iodin one of us has more than 100 trillion cells. Our genes argon find in chromosomes. Each cell in your body contains 46 chromosomes or 23 pairs. In a soul with go across syndrome, there are 47 chromosomes. In 1956, a French researcher named Jerome Lejeune used a in the raw powerful microscope to view human marges of DNA. DNA is what holds an individual persons genes. He studied these DNA strands and determined that there is an especial(a) strand in chromosome 21, which is now called Trisomy 21 tri meaning three and somy for the news chromosome meaning three chromosomes. No one knows exactly what causes overpower syndrome out from it world genetic.Many years ago, this set apart was known as mongolianism or mess that had it were called mongolian idiots. But in later years, Asian people as well as parents of these children pro runninged these terms and in the 1960s the condition became known as Down syndrome in honor of the incline resort John Langdon Down. Who, in 1866, studied people with mental clumsiness and storied distinct natural features in them. Some of the physical features associated with Down syndrome are low muscle tone, many newborns appear as floppy and not toned, they have flat facial features especially a runty snout with a flattened nasal bridge. Their eyes are roughly colorful with small skin folds at the inner corner. The have a light neck, small abnormal shaped ears, and an enlarged tongue that a good deal tends to propose making speech difficult to understand.Many people with Down syndrome hurt from a variety of health problems. The most common and material omen is mental retardation, which ranges from mild to moderate. People with Down syndrome suffer from connatural punk defects, which affect approximately 40-50% of these people. Their poor muscle tone makes lots physical activity difficult. There are many hormonal problems, primarily thyroid disease. People with Down syndrome suffer from circulatory problems, respiratory ailments, ... ...the placenta is re come upond and the cells are demonstrateed under a microscope for chromosomal abnormalities. The last test is Amniocentesis, which is where a sample of the amniotic fluid is withdrawn from the womb. This procedure is make during the fourteenth to 18th week of pregnancy. This is the most tried and true and accurate test. It is 99.8% reliable in testing for Down syndrome. There is another blood test open called Percutaneous Umbilical Blood Sampling (PUBS). The fact of the pub lication is no matter how different or unusual these people appear, people afflict with Down syndrome should be treated with respect and dignity that standardized you and me. These people are productive individuals and have many things to offer. reasonable because they are different doesnt mean they arent valuable to us. We heap gain vigor patience and acceptance from them and until there is a cure, our acceptance and a imperative attitude will help us all to move forward. plant CitedDiseases and Disorders - Down Syndrome, Christina M. Girod, San Diego, CA, 2001Down Syndrome, Salvatore Tocci, Grolier Publishing Company, Inc., 2000www.aolsvc.health.webmd.aol.com/content/article/1680.54172www.my.webmd.com Down Syndrome Essay examples -- essays research papers fc Down syndrome is a birth defect caused by a genetic disorder that affects 350,000 people in the United States. It is caused by abnormalities in the genes and is not inherited, meaning that parents do no t pass this onto their children. Genetics is the study of heredity or how certain traits are passed from parents to their children. Genes are the basic unit of heredity. Cells are the building blocks of your body and each one of us has more than 100 trillion cells. Our genes are located in chromosomes. Each cell in your body contains 46 chromosomes or 23 pairs. In a person with Down syndrome, there are 47 chromosomes. In 1956, a French researcher named Jerome Lejeune used a new powerful microscope to view human strands of DNA. DNA is what holds an individual persons genes. He studied these DNA strands and determined that there is an extra strand in chromosome 21, which is now called Trisomy 21 tri meaning three and somy for the word chromosome meaning three chromosomes. No one knows exactly what causes Down syndrome aside from it being genetic.Many years ago, this condition was known as mongolism or people that had it were called mongolian idiots. But in later years, Asian people a s well as parents of these children protested these terms and in the 1960s the condition became known as Down syndrome in honor of the English doctor John Langdon Down. Who, in 1866, studied people with mental retardation and noted distinct physical features in them. Some of the physical features associated with Down syndrome are low muscle tone, many newborns appear as floppy and not toned, they have flat facial features especially a small nose with a flattened nasal bridge. Their eyes are slightly slanted with small skin folds at the inner corner. The have a short neck, small abnormal shaped ears, and an enlarged tongue that often tends to protrude making speech difficult to understand.Many people with Down syndrome suffer from a variety of health problems. The most common and significant symptom is mental retardation, which ranges from mild to moderate. People with Down syndrome suffer from congenital heart defects, which affect approximately 40-50% of these people. Their poor mu scle tone makes much physical activity difficult. There are many hormonal problems, mainly thyroid disease. People with Down syndrome suffer from circulatory problems, respiratory ailments, ... ...the placenta is removed and the cells are tested under a microscope for chromosomal abnormalities. The last test is Amniocentesis, which is where a sample of the amniotic fluid is withdrawn from the womb. This procedure is done during the 14th to 18th week of pregnancy. This is the most reliable and accurate test. It is 99.8% reliable in testing for Down syndrome. There is another blood test available called Percutaneous Umbilical Blood Sampling (PUBS). The fact of the matter is no matter how different or unusual these people appear, people afflicted with Down syndrome should be treated with respect and dignity just like you and me. These people are productive individuals and have many things to offer. Just because they are different doesnt mean they arent valuable to us. We can learn pat ience and acceptance from them and until there is a cure, our acceptance and a positive attitude will help us all to move forward.Works CitedDiseases and Disorders - Down Syndrome, Christina M. Girod, San Diego, CA, 2001Down Syndrome, Salvatore Tocci, Grolier Publishing Company, Inc., 2000www.aolsvc.health.webmd.aol.com/content/article/1680.54172www.my.webmd.com