Well put Donna, and Thank You!
I've got a little girl with the pea comb, green legs, hatched from a blue egg and she lays BROWN eggs for me. Demonstrating that indeed sometimes the genes are NOT inherited together. What are the odds?, pretty slim I'd say, but leave it to me to be the one! Sheesh!
This also demonstrates to me how awesome it is to actually get a hen that will lay Olive eggs. Yes, I have egg envy.
IDK..... I have read 3%, but think it might be slightly higher. Same, I think, for a straight comb to lay a blue egg. I may have that wrong, but I don't think it would be much of a % difference.