Down Syndrome : A Genetic Condition

1627 Words Apr 29th, 2016 7 Pages
Down syndrome is named after Dr. J.L. Down, who first discovered and studied the condition. It is part of a large number of disabilities known as intellectual disabilities. Down syndrome is present at birth and individuals are usually diagnosed during pregnancy or shortly after birth. There are three types of Down syndrome. The most common of these involves an extra number 21 chromosome, which gives the individual 47 instead of 46 total chromosomes. A chromosome breaking and then reattaching to another chromosome characterizes translocation, which is the second type of Down syndrome. The third type, nondisjunction occurs when a pair of chromosomes fail to separate properly during nuclear division. Individuals with this disability usually have difficulty with speech and interacting with others.
Down syndrome is a genetic condition that causes delays in physical and intellectual development. Statistics indicate that Down syndrome occurs about 1.36 times in every 1,000 live births, currently more than 35,000 people in the United States have been diagnosed with Down syndrome. Research studies show that children with Down syndrome have lower muscle strength, levels of motor development, and cardiovascular fitness. Research also shows that these children experience growth delays, heart, vision and thyroid problems and other primary and secondary health conditions.
Each person with Down syndrome has developmental problems which may range from mild to moderate, and some people are…
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