Dolly the sheep aged 5 times faster than it should have. I think it's still alive but the last time I saw it on T.V had had lost most of it's hair and was very old even though it was only a couple of years old.
Cloning is meant to produce an exact replica but NO clone has been 100% successful.
I've seen pictures of cloned animals and they have been born with there stomach on the outside, legs missing, sometimes more limbs than the should have, they've been born blind, deaf and mentally ill. Some of the pictures are really shocking.
One cow had to wear an oxygen mask to breath because it's lungs were so messed up.
Maybe someone is trying to tell us something.