Anime only, right? Anyway, even Kakashi with his Sharingan can't discern a clone from the real body. He warped a fake Deidara assuming it was the real one. If he had noticed it was fake, he'd have already known that Deidara was still alive.
What chakra type are you?
Though that doesn't fully answer the question. But manga does back that up by showing Non-Uchiha members who process a Sharigan to having it be covered up. Kakashi and Danzou are proof of that. But I'll still try to find the manga page or databook page to fully back that up.
I've some questions:
Madara said that the body of the Juubi was sealed away and been blasted into the sky and became the moon. Gedou Masou's has handcuffs on him, has nine eyes..
1. So what if Gedou Masou is the original body of the Juubi and Madara made the story up, that it's been blasted into the sky and bcame the moon?
2. Isn't his handcuffs, a symbolic way for letting us know that it will break lose in the end?
3. By the looks of Gedou Masou, it looks like it's being made of wood. Knowing that the 1st hokage could control bijuu's with his Wood Elements: is it possible that Rikudou Sennin used an everlasting wood sealing jutsu to keep Juubi's body intact, after dividing Juubi chakra into nine parts?
4. after dividing Juubi's chakra into nine parts, could his one big eye automatically been seperated to nine single eyes..? ( just like how Gedou Masou is right now )
... You're Dead 2 Me Now ...