Down syndrome

Down-Syndrome Do you ever see other people and wonder why they act and look so differently? Their is a genetic disorder by the name of Down-Syndrome. Down-Syndrome is a condition in which a person has 47 chromosomes while others have 46 it is also the most common chromosome condition. People with this disorder may have the facial features of flat face, small nose, upward slant eyes, enlarged tongue and may appear shorter than others. Kids with Down-Syndrome tend to grow at a slower rate. You…

Background: What is Down Syndrome? Down Syndrome is a chromosomal disorder caused by an error in cell division that results in an extra twenty-first chromosome, that causes birth defects of developmental and intellectual delays. The human body is composed of trillions of cells and within the nucleus of each cell are structures called chromosomes (Parks, 2009). About eight million babies are diagnosed with Down Syndrome in the United States with approximately twenty thousand in Western Europe…

disorder Down syndrome. This occurs when each cell has three copies of chromosome twenty one rather than having a pair. Commonly, Down syndrome is caused by nondisjunction. Nondisjunction is "an error in which homologous chromosomes or sister chromatids fail to separate normally during meiosis or mitosis" (Huether,McCance pp.42). Scientists have discovered that Down syndrome is caused by an extra chromosome, but the cause of why that occurs is unknown. The main risk for having a child with…

What is Down syndrome? Risk Factors and Research Bria Williams Valencia Community College, East Campus Author Note This paper was written for Human Biology, Section 24630, taught by Professor Ed Schultz. Abstract In 1866, John Langdon Down; an English physician, recorded and published an accurate description of a person with Down syndrome. He stated that, the facial features of those who have Down syndrome were similar to those of the Mongolians and he called them mongoloids. Down…

about Down Syndrome and what exactly causes it, or even the health problems that these children and adults face? Down Syndrome, often known as DS, is a genetic condition which is caused by an extra chromosome. Down Syndrome is also the most common genetic disorder. There is no way of preventing Down Syndrome, although genetic counseling is available to figure the odds of having a baby with Downs. Over the course of many years, more tests and screenings have become available for diagnosing Down…

“One in every 691 babies in the United States is born with Down syndrome- about 6,000,000 people each year.” Down syndrome is one of the more known genetic disorders with more than 38% of Americans know someone who suffers from it. Also known as other names such as Trisomy 21, 47XX+21, and 47Xy+21. Down syndrome was first identified in 1862 by physician John Langdon Down, who the condition is named after. However, it was not identified as a chromosomal irregularity until Jèrôme Lejeune and an…

Introduction Down syndrome, while perhaps one of the most physically recognizable conditions of developmental disability, is still one of the least studied. Even though what we do know shows that with early intervention we can substantially improve the individual and their families’ wellbeing. Down syndrome occurs in one out of eight hundred live births, and is the most common genetic cause of mental retardation (National Institutes of Health, 2005). Idea Definition Downs syndrome can fall…

Down syndrome is a mutation that occurs when an individual has a partial or full extra copy of chromosome 21. The additional chromosome changes the course of development and causes the well known characteristic changes associated with down syndrome. A few of the common physical traits of down syndrome are small stature, low muscle tone, and an upward slant to the eyes. However, each person affected with down syndrome is unique and may possess these characteristics to different levels. Down…

“Down syndrome is a genetic disorder caused when abnormal cell division results in extra genetic material from chromosome 21. This genetic disorder, which varies in severity, causes lifelong intellectual disability and developmental delays, and in some people it causes health problems. Down syndrome is the most common genetic chromosomal disorder and cause of learning disabilities in children.” ("Down Syndrome - Mayo Clinic") History: Down Syndrome was discovered in 1866 by a British…

have met or seen someone that has Down syndrome. The reason I say this is because Down syndrome is very common. Down syndrome is a genetic disorder that some people have. Along with this genetic disorder it brings more than just looking different from others. In this report I am going to describe to you some important things that Down syndrome brings with it. First you need to have an understanding of what Down syndrome is. There are three types of Down syndrome and each one is a little bit…