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Mar 8, 2018 · Down syndrome is a genetic disorder caused when abnormal cell division results in an extra full or partial copy of chromosome 21. This extra genetic material causes the developmental changes and physical features of Down syndrome.
Down syndrome (United States) or Down's syndrome (United Kingdom and other English-speaking nations), also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. [3]
Nov 28, 2023 · Down syndrome (sometimes called Down’s syndrome) is a condition in which a child is born with an extra copy of their 21st chromosome — hence its other name, trisomy 21. This causes physical...
Feb 23, 2024 · Down syndrome is a genetic condition that causes mild to significant physical and developmental problems. People with Down syndrome (DS) are born with an extra chromosome....
Down syndrome is a genetic condition where a person is born with an extra copy of chromosome 21. This means that they have a total of 47 chromosomes instead of 46. This can affect how their brain and body develop. People diagnosed with Down syndrome have happy and healthy lives with supportive care.
May 16, 2024 · Down syndrome is a genetic condition where a person is born with an extra chromosome. This can affect how their brain and body develop. People diagnosed with Down syndrome can lead healthy lives with supportive care. What it is. Down syndrome is a condition in which a person has an extra copy of chromosome 21.
Jul 13, 2024 · Down syndrome, congenital disorder caused by the presence in the human genome of extra genetic material from chromosome 21. The physical features of Down syndrome were first described in 1866 by British physician John Langdon Down. Learn more about the types, symptoms, and diagnosis of Down syndrome.
Apr 6, 2021 · Down syndrome occurs when an individual has a full or partial extra copy of chromosome 21. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome.
Down syndrome is a genetic condition, not an illness or disease. It is nobody’s fault. There is no cure and it does not go away. Find out more in our fact sheet and video. About Down syndrome (Fact sheet) About Down syndrome (Translations) Learn more about Down syndrome. How is Down syndrome diagnosed?
Jan 26, 2024 · What is Down syndrome? Down syndrome is a condition in which a person has an extra chromosome or an extra piece of a chromosome. This extra copy changes how a baby's body and brain develop. It can cause both mental and physical challenges during their lifetime.
