Skip to main content

TED-Ed

You could have a secret twin (but not the way you think) - Kayla Mandel Sheets

3,069,815 Views

4,563 Questions Answered

TEDEd Animation

Let’s Begin…

While searching for a kidney donor, Karen Keegan stumbled upon a mystery. After undergoing genetic testing, it turned out that some of her cells had a completely different set of genes from the others. And this second set of genes belonged to her twin sister— who had never been born. How did this happen? Kayla Mandel Sheets explores the condition known as chimerism.

Watch the video and finish the Think section to complete the lesson.


About TED-Ed Animations

TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »

Meet The Creators

Educator
Kayla Mandel Sheets
Director
Luísa Holanda, Hype CG
Narrator
Bethany Cutmore-Scott
Storyboard Artist
Luísa Holanda
Animator
Murilo Jardim
Hype Producer
Taíla Soliman
Art Director
Luísa Holanda
Composer
Gabriel Maia
Sound Designer
Gabriel Maia
Director of Production
Gerta Xhelo
Editorial Director
Alex Rosenthal
Producer
Bethany Cutmore-Scott
Editorial Producer
Elizabeth Cox
Production Coordinator
Abdallah Ewis
Fact-Checker
Jennifer Nam

More from Getting Under Our Skin