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Message: <blockquote data-quote="arscott" data-source="post: 1973945" data-attributes="member: 17969">Not really.  The basic punnett square conept only applies for characteristics that are determined by one gene from the father and one gene from the mother.  And given the vast differences between orcs, elves, and humans, that's not going to be likely.  The human genome has 23 chromosome pairs, one set inherited from the mother, and one set inherited from the father.  And since our fictional elves and orcs are capable of interbreeding with humans, the same must be true of them.So this hypothetical half orc PC has 23 pairs of chromosomes, one of each pair being a human chromosome and the other being an orcish chromosome.  Any children he has have a 50-50 chance of inheriting each.  The same applies to the half elf.So in order to inherit all human DNA, the hypothetical child would have to get all 46 human chromosomes. The chances of that happening is 1 in 2^46 (which is 70,368,744,177,664)to put that in perspective:  if your couple had over ten thousand times as many children as there are people living on earth, chances are one of them would be fully human.And this ignores the almost certainty of crossover, a phenomenon whereby portions of information are transferred between two chromosomes in a pair, which makes full human bloodedness even more unlikely.</blockquote>