[He's glad that she's going on about it because he would have ended up asking all of those questions anyway. His shoulders square a bit, his hands clasped behind his back, looking naturally far more dignified than most. Not like he's trying too hard as some do, but it's a manner that's just... him.]
Such things are most definitely not out of the realm of possibility. We pride ourselves on evolving after all; learning, growing, changing. And having come so far already, it seems only right that humanity would continue to do so even through such intrinsic aspects of DNA. [And perhaps this sort of evolution was exactly what the Q had been so afraid of initially. It made sense to him. And honestly, the prospect of that delighted him.]