its actually simpler than this, genes that are heterozygous (het) are 1 gene and homozygous (sometimes called supers) are 2 genes (genes come in pairs of 2 on DNA). Thats all you need to know as far as figuring out what you can get.
Recessive don't show visually in the het form, just the homozygous
ex. het albino looks like a normal, homozygous looks albino
co-dom show visually in the het form and show differently in homozygous
ex. pastel is het form, super pastel is homozygous
dominant traits look the same in het or homozygous form
ex. pinstripe looks the same in het or homozygous form
all morphs are het or homozygous, in the above example morph 1 would be pastel (het), morph 2 would be albino (homozygous). but you can pick any morph and it calculates the same, just depends if its het or homozygous, being recessive or co-dom doens't matter.