Sarada eventually learns from Sakura that she is her biological mother. After she confirms this, Sasuke says that Sarada's existence shows the connection between him and Sakura.
So to answer your question, the reason is that Suigetsu mistakenly thought that the umbilical cord that Karin kept was her own umbilical cord when it was in fact Sarada's, so when he took Sarada's DNA to test it, he was testing it against Sarada's own DNA, so obviously it matched.
yes, they are both from the uzumaki clan, and karin has similar hair and powers to naruto's mother, on a side note, naruto is also related to tsunade, who is a descendant of both the senju and uzumaki clan. They are from the clan: The Uzumaki clan.
They are both Uzumakis and Karin has the red hair trait that Naruto's mother, Kushina, had. They're not related.
Yes they are actually like distant cousins. They are both Uzumakis and Karin has the red hair trait that Naruto's mother, Kushina, had. They're not related.
In the final moment of the novel, Winston encounters an image of Big Brother and experiences a sense of victory because he now loves Big Brother. Winston's total acceptance of Party rule marks the completion of the trajectory he has been on since the opening of the novel.
Winston survives all the way to the end of George Orwell's 1984. The end of the story finds Winston at the Chestnut Tree Café, sitting by a chess board and drinking gin. A number of memories appear in his head. It was a false memory.
The mind-wiped Magneto did not return until 1997 in Uncanny X-Men #350. Wolverine lost his adamantium skeleton (and subsequently left the X-Men). He did not get it back until 1999, when Apocalypse rebonded it to his skeleton, shown through flashback sequences during Wolverine (vol. 2) #145.