Search results
Results From The WOW.Com Content Network
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 ...
Mongolian idiocy. The obsolete medical terms Mongolian idiocy and Mongolism referred to a specific type of mental deficiency, associated with the genetic disorder now known as Down syndrome. The obsolete term for a person with this syndrome was called a Mongolian idiot. In the 21st century, these terms are no longer used as medical terminology ...
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 ...
The book, characteristic of the consequently discredited ideas of scientific racism prevalent at the time, explored and presented the idea that "Mongolian imbecility" (a form of intellectual disability now called Down's syndrome and known to be caused by the replication (trisomy) of the chromosome 21) was an atavistic throwback to, and/or the ...
Mongoloid (/ ˈmɒŋɡəˌlɔɪd /) [ 1 ] is an obsolete racial grouping of various peoples indigenous to large parts of Asia, the Americas, and some regions in Europe and Oceania. The term is derived from a now-disproven theory of biological race. [ 2 ] In the past, other terms such as " Mongolian race", "yellow", "Asiatic" and " Oriental ...
Lists. v. t. e. The following is a list of terms, used to describe disabilities or people with disabilities, which may carry negative connotations or be offensive to people with or without disabilities. Some people consider it best to use person-first language, for example "a person with a disability" rather than "a disabled person." [1]
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 ...
Kathryn McGee. Kathryn "Kay" McGee (née Greene, May 6, 1920, in Chicago, Illinois – February 16, 2012 in River Forest, Illinois) was an American activist, recognized for founding two of the first organizations for the benefit of those with Down Syndrome. [1] She worked seeking recognition, rights and opportunities for people with Down Syndrome.