I'll point you to
http://en.wikipedia.org/wiki/Mendelian_inheritance for a fairly good explanation of the entirety of KittyCatS genetics. Don't follow any links to any other concepts in genetics (except, maybe, to check a definition).
On the page you'll see a simple Punnet square (using Suns, on the left side) for simple Dominant and Recessive production. That's all you need.
To the right is a larger chart labeled Dihybrid cross showing the production resulting when you're looking at two traits at once (say fur and eye color). But, don't get too caught up in either the fact it has a name, or that it *appears* more complex than the chart on the left. In actual fact, except that it has a name, it's the EXACT SAME chart as the one on the left. I know, sure looks different: it really aint.
Or, I could take a couple hours and do the FULL chart for KittyCatS. I hereby dub it the Di-Di-Mono-Mono-Di-Di-Di-Di-Di-hybrid cross chart since it shows every single possibility. Of course, there's little point in posting that chart because it's be HUGE.
So, stick with the simple charts, don't get too caught up in them, though, and learn to do it in your head.
