Even if they're alternate it doesn't mean their genetic codes would have changed does it?
Even as alters, they're the same body, same blood, it's the personalities that have changed...
Sam and Dean aren't birth siblings anymore, but you'd think Sam and Alter-Sam would still have the exact same DNA.
I can see the way you separate it though, line down the middle, this world-that world, but the DNA still makes me wonder. I've obviously taken too much biology ^.^
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Even as alters, they're the same body, same blood, it's the personalities that have changed...
Sam and Dean aren't birth siblings anymore, but you'd think Sam and Alter-Sam would still have the exact same DNA.
I can see the way you separate it though, line down the middle, this world-that world, but the DNA still makes me wonder. I've obviously taken too much biology ^.^