[Would he ever get to talk science? Maybe Emet-Selch would appreciate it. Or Honerva. Even though he hadn't made any more himselfs yet, he at least understood already how it was done.

Pausing for a moment, he thought of another way to explain it.]

It means that instead of having two biological parents and having traits from both, he only has one parent and is almost an exact duplicate. Frankly, you're looking at a scientific marvel. And to see that he has reached an age of physical maturity without suffering major health deficiencies... it's an irrefutable success.