I had a easter egger rooster in the hen run last year and he mated one of my andalusians and I did not think about it. I hatched out some of the hens eggs and one turned out to be a andalusian pullet with a rose comb she is very pretty and lays a white egg.Dominant genes. I don't think of them as the only thing that gets passed on, rather, I think of them as something that trumps everything else. I wonder though. Remember the rhode island red bantams that got hatched out last October (I think it was). I think there were 6 or 7 of them. The daddy was a rose comb and the mama a single comb. I expected the rose comb to trump the single comb and at least 90% of the offspring would have rose combs. Sounds dominant, right? I suppose if we had hatched 100 chicks out of that cross, there may have been 90 with rose combs but as it was, with 6 chicks, one had a rose comb.
So... I'm as lost as ever on this dominant gene thing.