Bumble Bee X double het caramel glow?

[GenePirate]

Bee is on the top, het caramel glow on the bottom. You can set up your square like this:

.........PScg Pscg pScg pscg
psCg
pscg
psCG
pscG

However, don't make things more complicated than they are. The bee has NO chance of throwing a caramel or ghost gene, so take those out of the mix. Similarly, the double het CG has NO chance of contributing a pastel or spider gene, so take those out of the mix. Only consider what your breeders can contribute, then assume the rest. You will wind up with this:

......PS Ps pS ps
Cg
cg
CG
cG

So, you can get equal chances of a bee het for caramel, pastel het for caramel, spider het for caramel, het caramel, bee, pastel, spider, normal, double het CG bee, double het CG pastel, double het CG spider, double het CG, bee het for ghost, pastel het for ghost, spider het for ghost, or het ghost. Each possibility is 1 in 16.

But, you'll have no idea which are going to be the CG single or double hets. Good luck.