
Wow I didn't catch that at first glance. I only knew of enigmas until now. From where I looked it up their trait are kinda like recessives but they're not recessives. They're stuck on the fence until a partner brings out their second gender. What they'll be, Alpha or Omega, depends on who their partner is. It's also said they're rare.
Since Chase was a dominant Alpha, if there are any Gammas in proximity they could transition into omegas with his overwhelming pheromones. That might cause complications in his situation, that's why it was asked.
Damn the pyramid of traits added a new floor and got taller. XD

Yeonwoo was a beta turned omega.
I think in the novel the gammas were mentioned when Mark's team replaced the original bodyguard team.
Gammas are rare. Most of the bodyguards of dominant alphas are gammas. Keith Pittman also has gamma bodyguards. They are the least affected by pheromones and it's much more difficult to turn them.
If they even survive being turned, they became very weak and their lifespan shortens, it get's worse when they give birth.
Chase's grandfather was gamma turned omega.
wtf is a gamma?