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

Download a free audiobook version of The Vanishing Half and support TEDEd s nonprofit mission: 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. Lesson by Kayla Mandel Sheets, directed by Luísa M H Copetti, Hype CG. Support Our NonProfit Mission Support us on Patreon: Check out our merch: Connect With Us Sign up for our newsletter: Follow us on Facebook: Find us on Twitter: Peep us