![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
![...our genetic material
has the potential of producing the first...
...our genetic material
has the potential of producing the first...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...our GENETIC material
has the potential of producing the first...
The Big Bang Theory Season 4, Episode 1
![...to protect the genetic integrity
of your sister's future offspring.
...to protect the genetic integrity
of your sister's future offspring.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...to protect the GENETIC integrity
of your sister's future offspring.
The Big Bang Theory Season 1, Episode 15
![Swell, well, how do I play
genetic predisposition?
Swell, well, how do I play
genetic predisposition?](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Swell, well, how do I play
GENETIC predisposition?
The Big Bang Theory Season 1, Episode 10
![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