...that's trying to transgenically manipulate
chicken DNA...
The Big Bang Theory Season 8, Episode 4
...but it has been pointed out to me
that you carry DNA of great potential.
The Big Bang Theory Season 1, Episode 15
We do share DNA.
The Big Bang Theory Season 1, Episode 15
Yeah, I was studying
recombinant DNA technology...
The Big Bang Theory Season 2, Episode 4
I have a sister with the same basic DNA mix
who hostesses at Fuddruckers.
The Big Bang Theory Season 1, Episode 1