Identical twins are completely different people though, despite their DNA--not clones, who are definitely exact copies of the people they're cloned from (well, except for the frog DNA--although Dr. Hamilton didn't say anything about frog DNA, did he?). I have no trouble believing that clones would have exact finger prints to the originals.
However, I do agree about the scar. That kind of irked me when I watched the episode.
"You take turns, advise and protect one another, even heal or be healed when the going gets too tough. I know! That's not a game--that's friendship!" ~Shelly Mezzanoble,
Confessions of a Part-Time Sorceress: A Girl's Guide to the Dungeons & Dragons Game Darcy\'s Place