Koprulu Terran population

[Karass]

Terrans of the Koprulu Sector obviously do have a form of cloning technology. It isn't mentioned outright, but we can try common sense: the original colonists were people heavily involved in the banned sciences, which include cloning. Since after the crash of the supercarriers the colonists were no longer under UPL's control, it is more than logical that they weren't obeying Earth's restrictions on manipulative sciences (and it was directly implied that they didn't obey the bans, since we know that cybernetic enhancement is abundant in the Koprulu sector) when colonizing the sector.

[mr. peasant]

Or perhaps, rather than cloning, they could just make do with external pregnancies using an artificial uterues. I mean, harvest one ovary and you can have about 20,000 eggs to fertilise. Using this method, you have better genetic variability and you don't wind up with hundreds or thousands of people looking exactly the same. Also, instead of growing them for armies (which would be expensive due to training), Terrans could be growing them for start-up colonies. Harvest an ovary (or more), create several thousand able-bodied individuals with no familial ties with anyone outside and chuck them on a planet with the bare essentials.

[Karass]

That's somewhat a form of cloning as well and I'm it was developed this was on Earth and the colonists later used it when exploring the sector.

[mr. peasant]

Not to be pedantic but 'cloning' is specifically about creating offsprings who are all genetically identical to one another and to their parent (individual), from whom the genetic material was first obtained from. The method I described above is simply creating a big batch of regular babies (meaning, they are genetically different from one another and from their parents) in a sort of baby farm.

Concept-wise, they are quite different from one another as the former is a form of asexual reproduction where as the latter is a form of sexual reproduction.