The chocolate dilutionb(b) and the extreme dilution (ce)which causes stone are different genes, both are recessive so in theory a mouse could be both chocolate and extreme dilute the mouse would appear a stone because the effect of extreme dilution is more 'extreme' than the chocolate dilution.
Do you have a specific cross in mind, if so write the details here and someone can tell you exactly what to expect.
If you cross a chocolate and a stone you could end up with a litter of blacks because as recessive genes the offspring have to inherit one from each parent. However as I said earlier your stone might also have the chocolate gene but you cant see it because of the effect of the extreme dilution gene.
Do you have a specific cross in mind, if so write the details here and someone can tell you exactly what to expect.
If you cross a chocolate and a stone you could end up with a litter of blacks because as recessive genes the offspring have to inherit one from each parent. However as I said earlier your stone might also have the chocolate gene but you cant see it because of the effect of the extreme dilution gene.
