![Uh, genetic weaknesses, right.
Um, there's the lactose intolerance.
Uh, genetic weaknesses, right.
Um, there's the lactose intolerance.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Uh, GENETIC weaknesses, right.
Um, there's the lactose intolerance.
The Big Bang Theory Season 2, Episode 2
![- How so?
- Everybody knows genetic diversity...
- How so?
- Everybody knows genetic diversity...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
- How so?
- Everybody knows GENETIC diversity...
The Big Bang Theory Season 1, Episode 15
![- So it's probably genetic.
- Well, maybe.
- So it's probably genetic.
- Well, maybe.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
- 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...
No, we're going with middle child
and a genetic predisposition...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
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?
Besides shortness, what genetic
weaknesses run in your family?](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Besides shortness, what GENETIC
weaknesses run in your family?
The Big Bang Theory Season 2, Episode 2