if it is true, that would really degrade Naruto's quality. it is impossible to copy a bloodline! here's my reasoning: you can't copy a mangekyou sharingan with a normal sharingan cuz if you could, then all the little kids inn the uchiha clan who just got the sharingan (so they don't have those 3 things around the pupil, but 1) would have just copied the adult's full sharingan. this works in the same way: mangekyou is just a higher form of the sharingan, so if you can't copy a full sharingan with a newly formed one, you can't copy the mangekyou with a full sharingan!