If you start with single morphs you would need 2 of the three to first hit in the same snake like using a spider and a pastel to try to make a bee. Then when you hit that you grow that animal and add the the 3rd gene which in this case will be the lesser. Then you have to hope that all 3 genes hit in 1 animal. You can up your chances and time if you either buy a duel gene of the 3 or by a super version of the pastel or lesser (there is no super spider). The super form will up your chances to pass atleast 1 of the genes along to the babies.

In the end you are trying to get all 3 gene's to be in 1 animal and each gene has a 50% chance.