![Karyotype of Down syndrome (DS or DNS), also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21 Stock Karyotype of Down syndrome (DS or DNS), also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21 Stock](https://as1.ftcdn.net/v2/jpg/03/44/42/84/1000_F_344428484_nMVIBTpw2v8RPeZAgjWDHnINZFrIcFwG.jpg)
Karyotype of Down syndrome (DS or DNS), also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21 Stock
![SOLVED: Familial Down syndrome is similar tO primary Down syndrome in that it is caused by trisomy 21. However; in familial Down syndrome, all O part of the third copy of chromosome SOLVED: Familial Down syndrome is similar tO primary Down syndrome in that it is caused by trisomy 21. However; in familial Down syndrome, all O part of the third copy of chromosome](https://cdn.numerade.com/ask_images/c7fa1a5290d843da991cffd0854dba2c.jpg)
SOLVED: Familial Down syndrome is similar tO primary Down syndrome in that it is caused by trisomy 21. However; in familial Down syndrome, all O part of the third copy of chromosome
![North Carolina Down Syndrome Alliance в Twitter: „Day 21: DID YOU KNOW? World Down Syndrome Day is celebrated every year on March 21. The third month and the 21st day. 3.21 – North Carolina Down Syndrome Alliance в Twitter: „Day 21: DID YOU KNOW? World Down Syndrome Day is celebrated every year on March 21. The third month and the 21st day. 3.21 –](https://pbs.twimg.com/media/Ffl3XFIXEAE_W-x.jpg)
North Carolina Down Syndrome Alliance в Twitter: „Day 21: DID YOU KNOW? World Down Syndrome Day is celebrated every year on March 21. The third month and the 21st day. 3.21 –
![Karyotype showing 3 copies of chromosome 21, 2 copies of chromosome X,... | Download Scientific Diagram Karyotype showing 3 copies of chromosome 21, 2 copies of chromosome X,... | Download Scientific Diagram](https://www.researchgate.net/publication/273181064/figure/fig2/AS:668996856733709@1536512688396/Karyotype-showing-3-copies-of-chromosome-21-2-copies-of-chromosome-X-and-1-copy-of.png)
Karyotype showing 3 copies of chromosome 21, 2 copies of chromosome X,... | Download Scientific Diagram
![SOLVED: Familial Down syndrome is similar t0 primary Down syndrome in that it is caused by trisomy 21 However in familia Down syndrome all Or part of the third copy of chromosome SOLVED: Familial Down syndrome is similar t0 primary Down syndrome in that it is caused by trisomy 21 However in familia Down syndrome all Or part of the third copy of chromosome](https://cdn.numerade.com/ask_images/aab55ddba34342b98fcd2cba6ebba44e.jpg)