I have a blue roan heifer that is out of a RED AND WHITE bull and a BLUE ROAN cow. This does not seem to be too difficult to understand for me, but I am being told by someone that this is impossible and that the bull must be a ROAN, which he is not. Their explanation is that the calf gets her black from the dam and therefore must get the roan from the bull, but I see it as getting the blue and roan genes from the dam's side. Is the roan gene not recessive anyway? I did not think you had to have a roan animal to have a roan calf. How many others have had Blue roans out of red and white bulls?