Probability table for color per mating pairs

The Probability Table gives the probability of producing a specific color when mating two cats. Like the roll of the dice, the actual results are left to chance. The chart can tell which colors can't occur, but it won't tell what will get created in a specific litter. The probabilities are based on how frequently an event usually occurs in a large population.






The table creation method is:

• Determine all the 2-gene combinations for each parent. This is determined by making all the different combinations of one Black/brown Gene 1 and one Dense/dilute Gene 2 that can occur from the 4-genes of the parent. The table below shows the combinations for each unique type.
• Create a matrix using all parent combinations. Children cells = # of Parent A combinations x # of Parent B combinations Put Parent A 2-gene combinations in the header cells horizontily on top and Parent B 2-gene combinations in the header cells vertically on the left.
• Add the parent combinations together for a 4-gene combination and put them in each cross inner cell to create the resulting possible children combinations.
• Put the Gene 1s together and the two Gene 2s together. Figure out the color of each child combination. Remember Bb is the same as bB and Dd is the same as dD. Order is not important in this case, although usually I put the dominant (uppercase) allele first.
• Calculate the percentage of each color.

Possible 2-gene combinations from each type of parent
4-Genes	Notation	Color Type	2-gene Combinations
BBDD	Nat	Natural not carrying brown or dilute	BD
BbDD	Nat(b)	Natural carrying brown	BD, bD
BbDd	Nat(d)	Natural carrying dilute	BD, Bd
BbDd	Nat(bd)	Natural carrying brown & dilute	BD, bD, Bd, bd
BBdd	Blue	Blue not carrying brown	Bd
Bbdd	Blue(b)	Blue carrying brown	Bd, bd
bbDD	Champ	Champagne not carrying dilute	bD
bbDd	Champ(d)	Champagne carrying dilute	bD, bd
bbdd	Plat	Platinum	bd