This page contains articles concerning the care and feeding of the animals on Noah’s Ark
- How Did They Feed All of the Animals On the Ark? – Short Answer: With the food God commanded Noah to bring onto the Ark
- Why Didn’t All of the Lions & Tigers & T-rexes [oh my!] Eat Everyone on the Ark? – Short answer: Because God took care of Noah and everything else on the Ark.
Noah's Ark: Beyond Flannelgraph 
Well Well Well, the web we weave… its simple Think DNA in tubes.. and then think about what the fallen Angels taught the sons of Noah, And your welcome for the real Answer 🧬👼🏾
That is speculation. There is no hint in the Bible itself that fallen angels taught anyone anything, much less helped God by helping Noah.
Furthermore, in order to store DNA in tubes (aside from needing the technology to extract DNA) for over a year, you need a freezer. Your science fiction story actually creates more problems than it purports to solve.
So you’re (not your) welcome for the free lesson on deductive logic.