Down Syndrome is a chromosomal condition related to chromosome 21. It affects 1 in 800 to 1 in 1000 born infants. People who have Down Syndrome have learning difficulties, mental retardation, a different facial appearance, and poor muscle tone (hypotonia) in infancy.
Down syndrome most often is caused by trisomy due to no segregation of chromosome 21 in the formation of the oocyte or spermatocyte and it can also be caused by translocation of trisomy 21. This translocation takes place in instances where a piece of chromosome 21 becomes attached to another chromosome often number 14 during cell division.
Like other groups of children with Down's syndrome, those in Surrey had relatively high scores on developmental tests in the first few months, the scores decreasing rapidly in early infancy and, in this group, more slowly after the age of 10 months. The decline continued to 11 years, so the rise at the age of 21 was the more unexpected.Conclusion. Down syndrome is a genetic disorder that occurs as a result of an additional chromosome. Down syndrome is caused by occurrence of an additional chromosome 21 which makes the person to have three copies of chromosome 21 instead of two.Conclusion Of Down Syndrome.. In order to proceed into meiosis, the cell must replicate its DNA and prepare for cell division during interphase. At this point, the cell would be called a diploid cell,. One of the nondisjunction is trisomy 21 or also known as Down’s syndrome.
In Down syndrome, though, there are 47 chromosomes with an extra, or third, copy of chromosome 21, instead of two. This is why the scientific term for Down syndrome is “Trisomy 21.” Today, through a blood test, physicians look at the karyotype to look for genetic abnormalities.Read More
Introduction. Down syndrome is one of the most common inherited syndromes, which causes intellectual disability. According to Selikowitz (2008), the disorder mostly affects males more than females and is the most prevalent chromosomal disorder.Read More
Science Essay Example: Have you ever been in a situation where you were confronted by a child who has Down Syndrome and were unsure of how to act around that child? I'm sure many of us have experienced the awkw term paper.Read More
Culture involves other sample music essay about a song subjects that describe deeply this word, issues such as, family, language, identity, stereotyping, raising, expectations, economic situation and so on. Therefore, family colleges prepare people for life essay the place in which society begins, but in many cases families are part of different cultures.Read More
Down Syndrome Essay Sample. Genetic factors are the sole cause of some non-infectious diseases; such genetic diseases are inherited or are caused by mistakes during cell division when gametes are formed (Alters, 2005). Down syndrome is caused by errors during the gamete formation.Read More
What is Down syndrome? Everyone has heard of Down syndrome but does anyone really know what it is and the causes of Down syndrome. The characteristics of a person with Down syndrome can be recognized by virtually everyone. A British doctor, John Langdon Down, discovered the genetic condition caused by extra genes in the 21st chromosome in 1866. Dr.Read More
Down Syndrome is the most common genetic disorder. Down syndrome affects people of all ages, races, and economic levels. It is the most frequently occurring chromosomal abnormality. It occurs about once in every 800 to 1,000 births. There are over 350,000 people in the Untied States alone that hav.Read More
Down Syndrome Essay Outline, essay contest, lifesaver essays essay writing contest 2018, central idea essay outline. 100%. Format. All formats are available. 2. Payment. Proceed to secure payment. We accept VISA, Master Card, Discover and AmEx. Or you can pay using PayPal. 21:00.Read More
Informative Speech Outline Specific Purpose: To inform my audience about two different ways children can be born with Down Syndrome. Central Idea: Today, I would like to talk about two different ways a child can be born with Down Syndrome, and why the difference between the two is important.Read More
Down syndrome is a condition in which a person is born with an extra copy of chromosome 21. People with Down syndrome can have physical problems, as well as intellectual disabilities. Every person born with Down syndrome is different. People with the syndrome may also have other health problems. They may be born with heart disease.Read More