Why identical twins can differ despite having the same DNA
In short: If identical twins share the exact same DNA sequence, why does one develop a genetic disorder while the other remains healthy? This video explores the biological mechanism behind this phenomenon.
The video examines the concept of X chromosome inactivation, a process that explains how identical twins can exhibit different traits or health outcomes. While DNA provides the fundamental blueprint for our cells and traits, the way certain chromosomes are expressed can lead to significant biological variations between individuals with identical genetic sequences.
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Sources
- Summary by Intellect · source: Secrets of the X chromosome - Robin Ball
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