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Down syndrome

en.wikipedia.org/wiki/Down_syndrome

Down syndrome (DS or DNS), also known as trisomy 21, is a genetic disorder caused by the presence of all, or part of a third copy of chromosome 21.

What Is Down Syndrome? - National Down Syndrome Society

www.ndss.org/Down-Syndrome/What-Is-Down-Syndrome/

Down syndrome occurs when an individual has a full or partial extra copy of chromosome 21.

Down Syndrome - KidsHealth

kidshealth.org/en/parents/down-syndrome.html

Down syndrome is a condition in which extra genetic material causes delays in the way a child develops, both physically and mentally.

Down syndrome - Mayo Clinic

www.mayoclinic.org/diseases-conditions/down-syndrome/basics/definition/con-20020948

Down syndrome is a genetic disorder caused when abnormal cell division results in extra genetic material from chromosome 21. This genetic disorder, which ...

Down syndrome - Genetics Home Reference

ghr.nlm.nih.gov/condition/down-syndrome

5 days ago ... Down syndrome is a chromosomal condition that is associated with intellectual disability, a characteristic facial appearance, and weak muscle ...

Down Syndrome: MedlinePlus

medlineplus.gov/downsyndrome.html

Jul 22, 2016 ... Down syndrome is a condition in which a person is born with an extra copy of chromosome 21. People with Down syndrome can have physical ...

Down syndrome: MedlinePlus Medical Encyclopedia

medlineplus.gov/ency/article/000997.htm

In most cases, Down syndrome occurs when there is an extra copy of chromosome 21. This form of Down syndrome is called trisomy 21. The extra chromosome ...

Down Syndrome | Birth Defects | NCBDDD | CDC

www.cdc.gov/ncbddd/birthdefects/downsyndrome.html

Mar 3, 2016 ... Down syndrome is a condition in which a person has an extra chromosome. Chromosomes are small “packages” of genes in the body. Babies ...

Down Syndrome - Symptoms, Causes, Diagnosis and Treatment ...

www.webmd.com/children/tc/down-syndrome-topic-overview

Down syndrome is a lifelong condition in which a person is born with distinct physical features and some degree of cognitive disability.

National Association for Down Syndrome | Serving the Down ...

www.nads.org/

National Association for Down Syndrome ... 6th Annual Walk for Down in th. ... The Heart of Illinois Down Syndrome Association, Inc. Presents Keep Calm and ...

Answers
Down Syndrome
Down syndrome is a genetic abnormality that occurs due to an extra copy of chromosome 21. It causes lifelong developmental delays that can range from moderate to severe. It cannot be cured but can be managed with educational interventions, specialized parenting techniques, and community engagement. These all can encourage a person with Down syndrome to develop life skills and social bonds. Many Down syndrome patients live past the age of 50. More »
Source: healthline.com