one of their parents (I will do names to make it easier and the first side I mention will be the dad's side) would have to be 100% American and the other 20% german, 20% Japanese, 20% Turkish, 20% Italian and 20% Chinese. theoretically speaking, one of THEIR parents (let's name him bob) Bob would have to be around 33% german, 33% Japanese, and 33% Turkish. the other parent (let's name her sally)would have to be 50% Italian and 50% Chinese. Again theoretically speaking, for bob, one of bob's parents (Bob's dad) would have to be around 76% german (This may not be correct) and around 34% Japanese. bob's mom would have to be around 76% Italian and around 34% Japanese. sally's parents would have to be 100% Italian and 100% Chinese. bob's dad's dad would have to be about 88% german and 12% Japanese bobs dad's mom would be 88% Italian and 12% Japanese. Bob's great-grandpa on his dad's side would be 94% german and 6% Japanese. Bob's great-grandma is 94% Italian and 6% Japanese. Bob's great-great-great grandpa is about 97% german and 3% Japanese. Bob's great-great-great grandma is 94% Italian and 3% Japanese. And finally, bob's great-great-great-great grandpa is 100% german and Bob's great-great-great-great grandma is 100% Italian.
btw, I think I messed this up a little
