Altered are Altered

The biology teacher in me is not really happy because three chromosomes should be represented exactly and only one is. Bill's Dad gave him the exact y-chromosome and they are the same in my layout. But the x from my Dad should be exact for me--the closest I could come was a similar one outlined in yellow--and the x from Bill to our daughter should be the same. The rest are all scrambled eggs--which X did Bill get from his Mom, which did I get from my Mom and which did I give the kid? It gets even funnier if you look at the chromosomes in my starting generation and wonder who gave them what? All in all--we are our ancestors, sort of! We are our ancestors, altered! And isn't that fun????