If you had two separate sets of twins, say one set is male and the other female, and they coupled up and eventually had kids, would their kids be siblings or cousins on a DNA level?
This is just wildly hypothetical, but I saw a clickbait ad somewhere about a story, and now I’m curious if there’s any validity to it. It said the kids would all have matching DNA and were siblings
In: 16
I happen to have grown up with the twins your clickbait arcticle is about. The Deane twins, Brittany and Brianna, met another pair of identical twins at a twin convention, paired off, and wound up as matching identical couples. They now have kids. Those kids, genetically, are indistinguishable from full siblings, even though physically and legally, they are cousins
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