All of the genes in the KIT series connect to the same locus, meaning creatures can only carry two of these genes in a series at most. For example, they can be ToSb (ne Tobiano and one Sabino gene), Sbn (One Sabino gene), or SbSb (Two Sabino genes). But they can't be ToToSb because that's too many KIT genes!
They are codominant, meaning that if a creature carries two different KIT genes, the effects of both will show. Having two copies of the same gene generally causes it white from it to cover more of the body.
White covering all or most of the entire creature, though some speckles of color may remain on the nose, around the eyes, ears, and groin.
Skin is pink where affected, but may have some minimal original color speckled in.
Usually causes blue or heterochromatic eyes. In hooved creatures, mane and tail are white.
Usually causes deafness.
Dominant White is LETHAL in double form, a WW creature will die within a few days of birth due to non-functioning colons.