Disclaimer: I'm not an expert in genetics {or elves, for that matter
}Still, I have a few thoughts on the subject.
If you wanted to try something interesting and rather different, then you could have the elvish gene (E) and the human gene (H), so a half-elf would be EH. Then if the half-elf (EH) married another half-elf (EH), then their children would have the possibility of being half-elf (EH), elf (EE), or human (HH). Which would be very strange, but full of possibility
.Otherwise, if the half-elves kept marrying within their kind, from my limited knowledge, they would remain half-elves because the genetic balance would remain intact.
) is actually a dominant trait but if you notice, it's not a majority. In all honesty you don't have to look much into genetics on this issue, you just have to shuffle the traits and mix and match them. The only thing I see needing attention is co-dominance (i.e. pointy-ish ears rather than just round or pointed) but that's easily changed too.
