
Uh, GENETIC weaknesses, right.
Um, there's the lactose intolerance.
The Big Bang Theory Season 2, Episode 2

- How so?
- Everybody knows GENETIC diversity...
The Big Bang Theory Season 1, Episode 15

- So it's probably GENETIC.
- Well, maybe.
The Big Bang Theory Season 4, Episode 23

No, we're going with middle child
and a GENETIC predisposition...
The Big Bang Theory Season 1, Episode 10

Besides shortness, what GENETIC
weaknesses run in your family?
The Big Bang Theory Season 2, Episode 2