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If you have a solid and a bicolor, just add the word white to the breeding and use the chart below.
Please note, no silvers, smokes, shaded's or tabbies are within these charts. However, until the scripts are finished being written, for Silver, Shaded and Smokes, simply follow the charts and substitute correlating color as listed below.
The chart below is for bi-color to bi-color only.
Bi-color to bi-color should increase white for the most part. However a van or genetic van to a bi-color will not increase white, yet may decrease the amount of white in the offspring. In otherwords...just because one cat has a lot of white(the van), doesn't mean you are going to increase white in the breeding.
Van to Van will produce Vans
Bi-color to Bi-color will produce 25% solid, 50% bi-colors and 25% van.
In order to have a bi-color offspring, one or more parents must be a bi-color.
With white being dominate- you most always gets white