The Doorman Season 6, Episode 18

George

(worried) Yeah, that's right. What if it's a genetic thing, like father like son?

Jerry

But, your father's not bald.

George

No, no no. That skips a generation. The baldness gene comes from your grandfather.

Jerry

Then I suppose the bosom gene comes from your grandmother.

Kramer

You know, Frank can't be too comfortable with those things clanging around. He should wear something for support.