Down Syndrome : A Congenital Chromosomal Disorder

. Down syndrome is not a disease that someone catches and is not caused by difficulties during the pregnancy, it is a genetic condition. This condition is caused by the presence of an extra chromosome in the body’s cells and causes a redundant amount of proteins to be formed. All cells of the body derive from a single cell formed by the fusion of a father’s sperm and a mother’s egg. Each cell carries a nucleus full of genetic material known as genes. These genes are inherited from both the mother and father. Each cell normally contains 46 pairs of chromosomes. 23 chromosomes come from one parent and 23 from the other, hence the 46 pairs. When it comes to children with down syndrome, one of the chromosomes does not separate properly and so the

Once faced with the fact you have a Down Syndrome baby however, the baby will

Down syndrome is caused by having an extra chromosome on the twenty-first chromosomal pair. People with down syndrome have forty-seven pairs of chromosomes. There are three types of down syndrome and they are Trisomy 21, Translocation, and Mosaicism. Trisomy 21 is the most common type of down syndrome. It occurs when there are three rather than two, number 21 chromosomes present in every cell of the body. Trisomy 21 accounts for ninety-five percent of the down syndrome population. Translocation unlike Trisomy 21 only accounts for four percent of the down syndrome population. In this case, part of the twenty-first chromosome breaks off during cell divas and attaches itself to another chromosome, usually chromosome 14. Mosaicism is the rarest

A child that is born with Down syndrome has a condition called trisomy 21. The term trisomy is described as the chromosomal error that results in a specific chromosome to have three copies. Therefore, in a case of Down syndrome, there are three copies of chromosome 21 in their DNA. A child with Down syndrome has a higher risk of hearing loss, heart abnormalities, and hypothyroidism.

Down syndrome (also known as trisomy 21) is a disorder that makes you physically and mentally more challenged than everyone else but you are still able to grow develop and live a partially normal life. The major causes of Down syndrome are first just getting unlucky and having the 21st chromosome be irregular. But if you have a child when you are older than 35 you have a highly increased chance of getting down syndrome also if you have a sibling with Down syndrome or another kid with-it that can also increase the chance of getting down syndrome. Some symptoms of this disorder are, you can be physically less capable than others can and can have a hard time remembering things and can possibly not be able to achieve what seems to be easy things to do daily. However, most important, they only live to about 80. In addition, they can have a hard time reproducing but can still can reproduce.

Trisomy Down Syndrome happens when there are three 21 chromosomes as opposed to the normal two. This is a result of either the sperm or egg failing to separate causing a replication in every cell of the body. Another type called Robertsonian Translocation happens when part of chromosome 21 is translocated to another chromosome to the reproductive cells to the parent or early development of the child. This type accounts for about 4% of all cases of down syndrome. Mosaic is a form of down syndrome when the extra chromosome 21 is found only in some of the body's cells. “Mosaicism is the least common form of Down syndrome and accounts for only about 1% of all cases of Down syndrome.”

Down syndrome is a genetic condition which can cause intellectual and developmental disabilities. Persons affected with Down syndrome have the common will have an additional chromosome; instead of 46, they

Down syndrome (known as Trisomy 21) is a genetic disorder caused when cell division results in extra genetic material from chromosome 21. This genetic disorder occurs in about 1 of 800 live births. Down syndrome was first characterized a separate form of mental disability by John Langdon Down in 1862. By the 20th century the disability had become the most recognizable form of mental disability. These individuals have gone through a lot. In ancient times, many infants with this disability were killed or abandoned. The people with Down syndrome used to be called Mongolian idiots and the syndrome was called mongolism. This comes from the people thinking that Down syndrome individuals resembled Mongolians. It doesn’t only affect the individual

Down syndrome is a chromosomal disorder which occurs in 1 out of every 800 live births ((T. Crandell, C. Crandell & Vander Zanden, 2012, p.81). Most Down patients have a condition called trisomy 21, or 3 copies of the 21st chromosome. This results in an individual with 47 total chromosomes instead of 46 that are normal (Crandell et al., 2012, p.81). This extra chromosome alters typical human

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 “is a lifelong condition… that happens before birth” (WebMD, 2015). According to the National Down Syndrome Society one in every 691 babies are born with the condition (NDSS, 2015). In order to understand this condition it is

This study aims to relay the experiences of a parent who has a child with Down syndrome to people who are not aware of what they go through. The researchers seek to improve the general knowledge of the public about having a kid with Down

Down syndrome (trisomy 21) is a chromosomal abnormality - change in the number of chromosomes, which lead to physical or mental abnormalities - caused by an error in cell division that is a result of having an extra 21st chromosome. 95% of the time the trisomy is mainly due to an abnormality of the egg of a mother, during fertilisation the 23 chromosomes from

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). According to Segal and Pesco (2015), Down Syndrome is characterised by physical features such as distinct facial characteristics, low muscle tone; conditions such as congenital heart disease; and Intellectual Disability with IQs typically ranging from 30 to 70.

Down syndrome is one of the most common and easily recognized genetic disorders. It is caused by abnormal cell division that involves the 21st chromosome pair of the 23 pairs of chromosome found in all normal human cells. There are three types of these abnormalities, which are non-disjunction, translocation, and mosaicism. Ninety five percent of children born with Down syndrome are a non-disjunction type which is three rather than two chromosome 21s. About three to four percent of cases are because of translocation which is chromosome 21 detaches and attaches to another chromosome. Mosaicism accounts for only one to two percent of births, which is an abnormal cell division with the normal 46 chromosomes

Human cells normally contain 23 pairs of chromosomes one in each pair comes from the father and the mother. Down syndrome results when abnormal cell division involving chromosome 21 occurs. These cell division abnormalities result in extra genetic material from chromosome 21 which is responsible for the characteristics features and development problems of Down syndrome. Trisomy 21 – about 95% of the time Down Syndrome is caused by Trisomy 21, where the child has three copies of Chromosome 21 (instead of the usual two copies) in all cells. This is caused by abnormal cell division during the development of the sperm cell or the egg cell (Flood, 2013)