recreating mitochondrial dna is not that far away, humans can already recreate protein. There is a reason these things got extinct, because they couldn't adapt to their surroundings. Darwinism 101 "survival of the fittest"
Liger - YouTube
there is a reason thing thing can't survive in the wild though it looks hella badass.
If you people don't knw the subject please stay away. Don't write random things.