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Bookmark or Share- Down Syndrome: Symptoms & Causes - Cleveland ClinicDown 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. Down syndrome can affect how your child develops.
- Types of Trisomy: Causes and Symptoms - Verywell HealthA trisomy is a genetic disorder in which a person has three chromosomes instead of the usual two. The most well-known trisomy is Down syndrome, but there are others like Edwards syndrome, Patau syndrome, and Klinefelter syndrome that have distinct symptoms and characteristics.
- Trisomy: Types of Trisomy Disorders - Cleveland ClinicTrisomy is a genetic condition that results in an extra copy of a chromosome. A person with trisomy will have 47 chromosomes instead of 46. Trisomy pregnancies can result in a live birth but many end prematurely in miscarriage.
- Down syndrome - Symptoms and causes - Mayo ClinicAbout 95% of the time, Down syndrome is caused by trisomy 21. This means the person has three copies of chromosome 21, instead of the usual two copies. The extra chromosome 21 is in all cells in the body.
- Trisomy - WikipediaA trisomy is a type of polysomy in which there are three instances of a particular chromosome, instead of the normal two. [1] . A trisomy is a type of aneuploidy (an abnormal number of chromosomes). Most organisms that reproduce sexually have pairs of chromosomes in each cell, with one of each type of chromosome inherited from each parent.
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