to mix my DNA with that
of a killer gorilla?
The Big Bang Theory Season 7, Episode 23
Yeah, I was studying
recombinant DNA technology...
The Big Bang Theory Season 2, Episode 4
Well, no one's going to run
a DNA test on it, Leonard.
The Big Bang Theory Season 4, Episode 6
but my DNA gets mixed
with the ape's DNA
The Big Bang Theory Season 7, Episode 17
with your
DNA in it.
The Big Bang Theory Season 7, Episode 7