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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 ...
Jérôme Jean Louis Marie Lejeune (13 June 1926 – 3 April 1994) was a French pediatrician and geneticist, best known for his work on the link of diseases to chromosome abnormalities, most especially the link between Down Syndrome and trisomy-21 and cri du chat syndrome, amongst several others, and for his subsequent strong opposition to the improper and immoral use of amniocentesis prenatal ...
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 ...
This is a list of people with Down syndrome, a condition also known as Down's syndrome or trisomy 21. Down syndrome is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. [1] It is typically associated with developmental delays, characteristic physical features, and mild to moderate intellectual disability ...
The Faculty of Psychology (Facultad de Psicología; PSI) is a faculty of the University of Buenos Aires (UBA), the largest university in Argentina. It offers graduate degrees on psychology, music therapy and vocational rehabilitation, as well as various post-graduate degrees on diverse fields. It was founded in 1985 as a split from the Faculty ...
There are risk factors that make some people more likely to experience motion sickness. Pre-existing medical conditions, such as benign paroxysmal positional vertigo (BPPV) and Parkinson’s ...
The Danza de los Voladores (Spanish pronunciation: [ˈdansa ðe los βolaˈðoɾes]; "Dance of the Flyers"), or Palo Volador (pronounced [ˈpalo βolaˈðoɾ]; "flying pole"), is an ancient Mesoamerican ceremony/ritual still performed today, albeit in modified form, in isolated pockets in Mexico. It is believed to have originated with the Nahua ...
First steps. Brown eased herself into her new lifestyle. “I started walking and just slowly changing my diet and adding more water in and focusing on just being a better version of myself.