to perpetuate my DNA.
The Big Bang Theory Season 10, Episode 5
Oh, sure, '’cause
Sheldon'’s DNA plus my DNA
The Big Bang Theory Season 12, Episode 3
Clearly, the combination of our DNA
is exceptional.
The Big Bang Theory Season 10, Episode 8
I possess the DNA of Leonard Nimoy?
The Big Bang Theory Season 2, Episode 11
but my DNA gets mixed
with the ape's DNA
The Big Bang Theory Season 7, Episode 17