Board Thread:Theories and Speculation/@comment-29769110-20161017201027/@comment-32196880-20170911092831

Thekillman wrote: Ryanuchiha01 wrote: Sarada is daughter of Karin Uzumaki & it is finally proven. So all those who are saying that she is not daughter of Karin Uzumaki are wrong. Hint: A 100% DNA match means that the DNA is identical. First of all, it is now stated by Karin herself in Boruto Episode 23 that Sakura is Sarada's biological mother. Karin only helped Sakura with the delivery and the glasses worn by Sarada is a gift for her from Karin.

A Rinnegan, as stated, can be manifested only if one possesses a Sharingan and has obtained Hagoromo's chakra(Indra's and Ashura's chakra). Sarada already has one half of Hagoromo's chakra(Indra) since she is an Uchiha, and there is a possibility she can manifest a Rinnegan of her own if she mixes Ashura's chakra with her own(either borrowing Naruto's or Boruto's chakra, or by a rare instance, Tsunade's chakra.)