Tag: trisomy 21
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Down Syndrome: Trisomy 21 – Causes, Symptoms, and Risks
Read more Down syndrome, also known as Trisomy 21, is the most prevalent birth defect in the United States. It was first identified by Dr. John Langdon Down in 1866, and the genetic cause of Down syndrome was discovered in 1959. In the U.S., it affects approximately 1 in every 800 babies, resulting in around…
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Down Syndrome: Understanding Trisomy 21
Read more Down syndrome is a genetic condition that arises from an irregular cell division, resulting in either a full or partial extra copy of chromosome 21. This additional genetic information leads to the distinct developmental changes and physical characteristics associated with Down syndrome. The severity of the condition can differ widely among individuals, often…