What is Down syndrome (trisomy 21)? Down syndrome is a set of symptoms that arise from a genetic abnormality, in which an individual’s cells have an extra copy of chromosome 21. Subscribe – https://goo.gl/w5aaaV. More videos – https://goo.gl/UhOKiM. Support us on Patreon – https://goo.gl/ZGHEk4.
This video covers the three main mechanisms leading to trisomy 21—nondisjunction, Robertsonian translocation, and mocaicism, as well as the more common complications and physical characteristics.
This video is brought to you by Osmosis. Along with providing open-access videos, Osmosis offers a comprehensive e-learning platform that connects med students with thousands of flashcards and quiz questions, depending on each student’s needs. Ever wish information would just diffuse into your brain? Well, Osmosis helps make that possible—don’t learn it, osmose it!
Support us on Patreon! – https://goo.gl/izRx2z
We also have free practice questions for the USMLE and NCLEX-RN exams here: https://goo.gl/3oGOEi
Also, we’re social:
Got feedback? We’d love to hear it!
This video is licensed under a Creative Commons CC-BY-SA 4.0 international license, which means that you’re free to share and adapt it so long as you follow the Attribution and ShareAlike terms and conditions!
Robbins Basic Pathology (text)
First Aid (text)
Biology—the dynamic science (text)
Script/audio/visuals: Tanner Marshall, MS
Reviewer: Rishi Desai, MD, MPH
Blood squirt sound effect by Mike Koenig – http://soundbible.com/828-Blood-Squirt.html