TED Radio Hour Many of us were taught biological sex is a question of female or male, XX or XY ... but it's far more complicated. This hour, TED speakers explore what determines our sex.

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Life's biggest questions, explored.

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The Biology Of Sex

The Biology Of Sex

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The Biology Of Sex

Many of us were taught biological sex is a question of female or male, XX or XY ... but it's far more complicated. This hour, TED speakers explore what determines our sex.

Emily Quinn speaks from the TED stage at TEDWomen 2018 TED hide caption

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TED

Emily Quinn: Male Or Female Is The Wrong Question—How Can We Rethink Biological Sex?

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Molly Webster speaks from the TED stage at TED@NAS, a 2019 TED-curated event, organzied in partnership with The Kavli Foundation, the Simons Foundation and the National Academy of Sciences. TED hide caption

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Molly Webster: Is Our Definition Of "Sex Chromosomes" Too Narrow?

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Lisa Mosconi speaks at Shoham Arad speaks at TEDWomen 2019: Bold + Brilliant, December 4-6, 2019, Palm Springs, California. Photo: Jasmina Tomic / TED Jasmina Tomic/Jasmina Tomic / TED hide caption

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Lisa Mosconi: What Does Biological Sex Look Like In The Brain?

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Karissa Sanbonmatsu speaks at TEDWomen 2018. Photo: Marla Aufmuth Marla Aufmuth/Marla Aufmuth / TED hide caption

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Karissa Sanbonmatsu: What Can Epigenetics Tell Us About Sex And Gender?

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TED Radio HourTED Radio Hour

Life's biggest questions, explored.

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