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19: The Science of Gay, How Many Songs Fit in DNA, and Niche Sports

Let's Learn Everything!

CHAPTER

Is Homosexuality Genetic?

Early twin studies suggest or suggested that there was a genetic component to same-sex sexual behavior. In fraternal twins, I believe it was 20%. The 20%, so it was 20, wait, wait, what you're saying is if infraternal twins, if one was gay, there's a 20% chance that one would, the other would also be gay. We should have known better, but here we are.

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