I read the story with a lot of interest, as my daughter's biological father is from New Orleans, LA.. and claims to be creole, but he does look black.

after reading all the stories I remember a conversation I had with a gentleman that worked at a wolf preservation zoo.
There are lots of people that breed wolves with german sheperds or other big dogs, the results from these litters will never be known unless each dog is genetically tested... some dogs will have more wolf and some will have more dog... the only way to ensure the pup gets only 50% is to genetically engineer the eggs... I hate to use this as an example, but it makes a lot of sense..

so you see even children that are born by parents of different race will inherit different %'s of the mix