Well, no one's going to run
a DNA test on it, Leonard.
The Big Bang Theory Season 4, Episode 6
...for fingerprinting and DNA analysis.
The Big Bang Theory Season 4, Episode 7
but my DNA gets mixed
with the ape's DNA
The Big Bang Theory Season 7, Episode 17
You can't deny your own DNA.
Money Heist Season 3, Episode 4
We do share DNA.
The Big Bang Theory Season 1, Episode 15