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- DictionaryDown syn·drome/ˈdoun ˌsindrōm/
noun
- 1. a congenital condition characterized by a distinctive pattern of physical characteristics including a flattened skull, pronounced folds of skin in the inner corners of the eyes, large tongue, and short stature, and by some degree of limitation of intellectual ability and social and practical skills. It usually arises from a defect involving chromosome 21, usually an extra copy (trisomy-21).
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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 varies in severity among individuals, causing lifelong intellectual disability and developmental delays.
Down syndrome Definition – It is a genetic disorder, which leads to various physical and mental disabilities. It is due to the presence of an extra chromosome 21 also known as trisomy of chromosome 21. Down syndrome is one of the leading causes of genetic disorders around the world.
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.
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.
Jan 31, 2023 · 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.
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....
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.
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.
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.
Jun 20, 2023 · However, the severity of the condition varies from person to person, and many people living with Down syndrome can lead happy, productive, and healthy lives. This article describes the types of Down syndrome, its causes, risk factors, symptoms, screening tests, and long-term outlook. manonallard / Getty Images.
