Banded is a dominant gene so you only need one copy to display a band. A banded hamster could be either BaBa with a double copy of the banded gene. All this hammies babies would be banded. However it could be Baba which would still show as banded because it has one copy of the banded gene and as this is dominant it will still be shown. If this hammy was mated to another Baba hamster then genetically we would expect 75% of the babies to have bands but 25% non banded as they did not get the Ba gene from either parent! If it was mated to a straight coloured hamster then 50% would be banded as it is the luck of the draw if you get the band gene or not.
Black eyed cream is a recessive gene so you need two copies to be cream so this hammy will be ee as he is showing cream. He also has long hair which is another recessive so he is at least eeBabalhlh. He could be carrying a multitude of recessives though so you would not know what you would get if you bred him really.
