Board Thread:Theories and Speculation/@comment-995176-20150614031507/@comment-3568954-20150630224914

Thekillman naruto is inspired by feudal Japan the way the Feudal system worked is that if your parentage was mother from 1 clan and father from another you were considered of both clans ie Sarada would be able to call her self Uchiha Sarada or Uzumaki Sarada

on a side note kishimoto was once asked what would happen if an uchiha and hyuga mated and had a child would the child be born with both sharingan and byakugan he said two things could happen 1 the child would be born with either the sharingan or the byakugan Not both if born with both it would be 1 sharingan and 1 byakugan

so with that being said even if Sarada is an uzumaki as well she would either have the sharingan or the sages body and if she has both it would only be fragments of both ie maybe 1 sharingan and the body or a weakened sharingan with a weakened body as having both would be 2 OP