I wouldn't expect too much out of the Ark selection process in terms of specific genetic traits. It's unlikely that eugenics became hip again, especially with the entire planet pulling together to make it happen.Easternmystic wrote:this happens when the selection process is entirely random. However, the colonists for Safehold were not randomly selected. We do know that their was a slection process of some kind. We just don't know what it was. It seems reasonable that above average physical fitness and intelligence would have been factors in the selection process. The biggest problem is that we have no information on how those or any other quality would have been measured.
Certainly there was a selection process - no disputing that - but I'll bet it was almost all phenotype-driven and the genetic profiles ruled out only a few. They needed strong, healthy Adams and Eves, so no one with a fertility issue would be included among them. (Conceivably it was an issue for the command crew, but very unlikely much of one.) If someone had a pronounced family history of something definitely heritable that would be a non-trivial problem, that could disqualify them. But otherwise, they'd be picking for genetic diversity so as not to create any remotely dangerous bottlenecks, and ethnic diversity if for no other reasons that to preserve a representative slice of Earth and make sure the whole of Earth's political base was behind this in full.
Eh - if you were from a colony world, by then, you'd probably been killed; if you were from Earth, by then, you probably hadn't been. If there's something in your genes (whopping big assumption!) that may get you in uniform in space, you'd have had a larger chance of getting killed.
There is also the fact that the colonists would have been selected from a gene pool that had already been winnowed by a brutal genocidal war. The colonists were being chosen from a group of survivors, which would probably make the base gene pool tougher, smarter and more fit than today's gene pool.
If there's some story to tell about gene frequency differences between successful colony world evacuees and those left behind, it could make a difference. I'm less dubious about that than any other form of selection from the war, but that's saying very little.
There's no reason to suppose the gene pools of Terran Federation colonies were meaningfully different than Earth's, and practically no reason to suppose that the non-TFN pool was different than the TFN one. (And for the story of Safehold being brighter from those selection pressures, you'd have to tell a story about smarter Earth and civilian stock than colonist or TFN stock. Good luck.) So the Gbaba War almost certainly didn't exercise pressure on the frequency of alleles in the gene pool. Whatever else, it was fair.