Do cards that affect Genetics cards also affect G-mod's abilities? For instance, could you use Gene Conditioning Shoppe to activate Quetzal's ability twice?

Genetics and G-mod are two different keywords. Do what the cards TELL you they do, not what you'd LIKE them to do.

Additionally, your example doesn't make sense; Quetzal's ability isn't conditional, so even if the Shoppe could trigger G-mods, there's no way that would work.

Thanks! I'm new and I played a game with a guy who insisted this was the case, but I couldn't find anything confirming or denying this, so I just wanted a straight answer.

I see where the confusion comes form: the flavor text on Gene Conditioning Shoppe. CommissarFeesh's statements should still stand, however.