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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 ...
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.
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 ...
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 ...
1953. " The Form of the Sword " (original Spanish title: "La forma de la espada", sometimes translated as "The Shape of the Sword") is a short story by Argentine author Jorge Luis Borges, first published in July 1942 in La Nación, and included in the 1944 collection Ficciones, part two (Artifices). The first English translation appeared in New ...
XX male syndrome, also known as de la Chapelle syndrome, is a rare intersex condition in which an individual with a 46,XX karyotype develops a male phenotype. [2] Synonyms for XX male syndrome include 46,XX testicular difference of sex development (or 46,XX DSD) [3] [4] [5] [6]
"Porque te vas" is a romantic ballad [17] that incorporates elements of funk, disco and pop music, featuring a predominant use of the saxophone. [18] Critic Julián Molero of Lafonoteca described the track's instrumentation as "full of self-confidence with almost mocking interventions of the brasses and the crash of the drums releasing unexpected blows". [19]
Spanish. Cría Cuervos ([ˈkɾi.a ˈkweɾβos], "Raise Ravens ", also written Cría cuervos…) is a 1976 Spanish psychological drama film written and directed by Carlos Saura and produced by Elías Querejeta. The film is an allegorical drama about an eight-year-old girl dealing with her troubled childhood. Starred by Geraldine Chaplin and Ana ...