Nothing alive, unless you choose individual genes which might get one or the other a particurlar protein makeup differing slightly from the rest of it's species.
Anti-humor is a type of indirect humor that involves the joke-teller delivering something which is deliberately not funny, or lacking in intrinsic meaning. The practice relies on the expectation on the part of the audience of something humorous, and when this does not happen, the irony itself is of comedic value.