Now that Leonard's made me aware
of how high the GENETIC stakes are...
The Big Bang Theory Season 1, Episode 15
Well, there is a GENETIC component,
but that doesn't guarantee anything.
The Big Bang Theory Season 10, Episode 8
Don't forget GENETIC predisposition
towards addiction.
The Big Bang Theory Season 1, Episode 10
Uh, GENETIC weaknesses, right.
Um, there's the lactose intolerance.
The Big Bang Theory Season 2, Episode 2
...our GENETIC material
has the potential of producing the first...
The Big Bang Theory Season 4, Episode 1