Secrets of the X chromosome - Robin Ball
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TEDEd Animation
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The sequence of DNA that we inherit from our parents encodes directions for making our cells and giving us specific traits. Identical twins have the same DNA sequence, so how can one twin end up with a genetic disorder while the other twin does not? Robin Ball explains how the secret lies in X chromosome inactivation.
Even though identical twins have the same sequence of DNA and the same gene variants, they may express different variants of the genes on the X chromosome. Explain how this difference arises and how it can lead to one twin with colorblindness and one with normal vision.
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Meet The Creators
- Educator Robin Ball
- Script Editor Eleanor Nelsen
- Director Anton Trofimov
- Associate Producer Jessica Ruby
- Content Producer Gerta Xhelo
- Editorial Producer Alex Rosenthal
- Narrator Julianna Zarzycki
