You just never know what will pop out of the gene pool.
My neighbor really amazed me, she and husband were black and their daughter looked like them except for one most amazing fact. The 2 year old had emerald green eyes.
This toddler was so amazing looking she drew a crowd when her mother took her shopping. Blacks and Whites would wander over and stare at the child like she was some kind of zoo animal.
Genetics can be tricky, Who Knows what will jump out of the gene pool a few generations down the line. The mother showed me pictures of her Grand parents, the grand parent mother was a mixed black, the grandparent of her grandmother was a former slave. Gets confusing here as I am trying to remember back 40 yeas ago. Somewhere in here an ancestor had married an Irish immigrate and his picture showed a red or blond man with blue eyes-- Hard to tell as the photo's were black an white. So at least 6 generations of black to black marriage and out of he blue, or should I say green, a child is born with the genes for eye color going back 160+ years ago.
Obama best hold onto his hat when his girls marry, his Irish roots may give him a dark skinned red haired ,blue eyed ,grandchild.
In my life the last two born 18 months apart same father, one is a blue eyed blond the baby has brown eyes and dark hair. 3 grandparents are blue eyed one had green eyes. There are charts from long ago I remember as to how eye color is suppose to be determined by genetics, today we know that a wandering gene from long ago can overcome the dominate genes and cause all kinds of problems for the baby's family
I find no fault with Obama finding an Irish Ancestor any more with Kate finding a g-g grandparent that worked the mines in Wales.