I have a sister with the same basic DNA mix
who hostesses at Fuddruckers.
The Big Bang Theory Season 1, Episode 1
Who's to say
that I don't share that flawed DNA?
The Big Bang Theory Season 4, Episode 2
It's my idea of what DNA would look like
in a silicon-based life form.
The Big Bang Theory Season 1, Episode 4
Oh, sure, '’cause
Sheldon'’s DNA plus my DNA
The Big Bang Theory Season 12, Episode 3
Yeah, I was studying
recombinant DNA technology...
The Big Bang Theory Season 2, Episode 4