Find thousands of books, manuscripts, visual materials and unpublished archives from our collections, many of them with free online access.
Search for free, downloadable images taken from our library and museum collections, including paintings, illustrations, photos and more.
Down syndrome human karyotype 47,XY,+21
- Wessex Reg. Genetics Centre
- Digital Images
- Online
Available online
Licence
Attribution 4.0 International (CC BY 4.0)
You can use this work for any purpose, including commercial uses, without restriction under copyright law. You should also provide attribution to the original work, source and licence.
Creative Commons Attribution (CC BY 4.0) terms and conditions https://creativecommons.org/licenses/by/4.0
Credit: Down syndrome human karyotype 47,XY,+21. Wessex Reg. Genetics Centre. Attribution 4.0 International (CC BY 4.0)
Selected images from this work
About this work
Description
Down syndrome karyotype (formerly called trisomy
21 syndrome or mongolism), human male, 47,XY,+21.
This male has a full chromosome complement plus an
extra chromosome 21. Symptoms include a varying
degree of mental retardation, growth failure,
muscular hypotoicity, flay occiput, large tongue,
slanting eyesm, simian palmar crease, intestinal
and heart problems, and acute leukaemia. Older
survivors often develop Alzheimer's disease in
their fourth or fifth decade. The syndrome is
associated with advanced maternal age.