Some more picking of nits. I know that a TV show doesn't get too deep into the science--it would be boring if it did--but Moclans are hard to figure out. Essenitally, they seem to be hermaphrodite, in how they all reproduce. So the idea that there's a male or female doesn't make a lot of sense. In their physiology, I'd assume they're all the same. So what would need to be altered to make them an opposite sex?
I thought about this when Ed said that the female sanctuary could end up as the last surviving Moclans--and it would be all female. But if the so-called females reproduce the same as the so-called males, then there's a chance they would have more males, as well as females. So in a few generations the males would also survive--unless the females made all their male babies into females.