Believe it or not, there are actually cases of a biracial couple having twins, one "white" and one "black"
http://exhalesome.blogspot.com/2006/02/biracial-twins-one-white-and-one-black.html
http://abcnews.go.com/Health/twins-...s-stirs-issues/story?id=12984334#.UboioJXhAy4
Mixed twins - Wikipedia, the free encyclopedia
Genetics can do some pretty unexpected things.
http://exhalesome.blogspot.com/2006/02/biracial-twins-one-white-and-one-black.html
http://abcnews.go.com/Health/twins-...s-stirs-issues/story?id=12984334#.UboioJXhAy4
Mixed twins - Wikipedia, the free encyclopedia
Genetics can do some pretty unexpected things.