File:John Langdon Down.jpg

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John Langdon Down

John Langdon Down (1828 – 1896) was a British physician who first described the syndrome named after him in 1866. Historically called "Down syndrome" the current terminology is trisomy 21.

This is the most common human aneuploidy where an extra copy of chromosome 21 is found in the cell genome.


Links: Trisomy 21 | Embryology Historic Terminology



Cite this page: Hill, M.A. (2024, February 27) Embryology John Langdon Down.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:John_Langdon_Down.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current11:45, 4 September 2011Thumbnail for version as of 11:45, 4 September 2011282 × 400 (12 KB)S8600021 (talk | contribs)==John Langdon Down== John Langdon Down ( 1828 – 1896) was a British physician who first described the syndrome in 1866 named after him, '''Down syndrome''' now called trisomy 21. The most common human aneuploidy where an extra copy of