Board Thread:Theories and Speculation/@comment-33486170-20171125044229/@comment-27924662-20171205185736

Elveonora wrote: The 'math' is still wrong. It assumes that Kushina is something that is nothing but a mere concept, that being '100% Uzumaki' that's unlikely. Even in clans that practice inbreeding, every now and then, someone outside of the clan must provide a flux of new genes. Considering that Naruto didn't inherit most of Uzumaki specific traits/special traits from Kushina, it's likely that Kushina wasn't a 'pure' Uzumaki and Naruto might have inherited more of the non-Uzumaki traits instead.

In that case, Naruto's X would be predominantly non-Uzumaki, with some Uzumaki genes and Y from Minato. Well its not just Kushina, even Hinata or sasuke should suffer from similar fate. I would like to point out though that we can actually assume them(Kushina to pinnacle of Uzumaki clan, Hinata is pinnacle of Hyuga as seen in last and Sasuke is pinnacle of Uchiha) to be almost perfect. very low percentage difference would actually be present in all these parents. I would say for all practical purpose and neglecting those small divisions of percents the clans were pure since if it were that easy to enter ninja clans than Hiden techniques could have been stolen or rare KKG stolen away by weaker clans this is definitely not the case.