No, we're going with middle child
and a GENETIC predisposition...
The Big Bang Theory Season 1, Episode 10
Don't forget GENETIC predisposition
towards addiction.
The Big Bang Theory Season 1, Episode 10
your GENETIC material
for his baby?
The Big Bang Theory Season 12, Episode 12
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