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Trisomy 21. Down syndrome (also known by the karyotype 47,XX,+21 for females and 47,XY,+21 for males) [98] is mostly caused by a failure of the 21st chromosome to separate during egg or sperm development, known as nondisjunction. [91] As a result, a sperm or egg cell is produced with an extra copy of chromosome 21; this cell thus has 24 ...
Israeli Ground Forces. Mohammad Bhar (Arabic: محمد بهار; 2000 – July 2024) was a 24-year-old Palestinian man with Down syndrome and autism who died after being mauled by an Israeli military dog in a Gaza Strip house during the Israel–Hamas war. Bhar, who had Down syndrome, autism, and speech difficulties, was unable to move without ...
Friedman voiced Ellen, a character with Down syndrome, in the Family Guy episode "Extra Large Medium", her first role as a voice actress. [6] In the episode, Friedman's character stated "My dad's an accountant and my mom is the former Governor of Alaska", referencing Sarah Palin, who has a son, Trig, who has Down syndrome.
Down syndrome is a genetic disorder that often results in distinct physical differences and intellectual disability. According to the Centers for Disease Control, each year about 6,000 babies are ...
John Langdon Down. John Langdon Haydon Down (18 November 1828 – 7 October 1896) was a British physician best known for his description of the genetic condition now known as Down syndrome, which he originally classified in 1862. He is also noted for his work in social medicine and as a pioneer in the care of mentally disabled patients.
The average IQ of a young adult with Down syndrome is 50, equivalent to the mental age of an 8- or 9-year-old child, but this number varies widely. [3] At the same time, they enjoy a rich social and emotional awareness. [4] Down syndrome is the most common chromosome abnormality in humans, [3] occurring in about one per 1000 babies born each ...
Genetics of Down syndrome. Down syndrome is a chromosomal abnormality characterized by the presence of an extra copy of genetic material on chromosome 21, either in whole (trisomy 21) or part (such as due to translocations). The effects of the extra copy varies greatly from individual to individual, depending on the extent of the extra copy ...
Child Euthanasia (German: Kinder-Euthanasie) was the name given to the organized killing of severely mentally and physically disabled children and young people up to 16 years old during the Nazi era in over 30 so-called special children's wards. At least 5,000 children were victims of the program, which was a precursor to the subsequent murder ...