Say my parents both have brown eyes. How did I end up with blue eyes? It's the same concept with cats having kittens. Unless a cat is a specific breed that has a particular color pattern, like Bengals have spots for example, all colors can be represented in a cat's genes, some dominant and some recessive.
The best thing to do is google it like Aly suggests, but to try to summarize, and to the best of my knowledge - here goes. Cat genetics are different than human genetics. Usually with a human there is one egg and one sperm fertilizes that egg. With cats, there are many egges and more than one sperm fertilizes each egg, which is why, like Aly mentions, a litter of kittens may have more than one father. Each egg and each sperm have their own genetic make up. If a brown tabby mom and an orange tabby dad create one kitten, that kitten could be any combination of colors from brown, to orange to calico and even white or black. It all depends on what color genes the egg and sperm are carrying. I take it you have studied this in biology yet, because you'll go through all the different combinations of dominant and recessive genes and how you can get a blue eyed baby out of two parents with brown eyes.
And maybe to help you....maybe...a white woman and a white man could have a black baby. If both the white woman and man have black genes in them, it's possible their baby could be black. What appears on our surface is not all that we are carrying in our genes. Also, just on a side note, I learned in my biology class that "black" genes are dominant when combined with "white" genes, which is why, if a black woman/man and a white man/woman have a baby, it will more than likely be "black" or at least have more "black traits" than "white traits."
Also, like someone else mentioned, different colors are not different breeds. They are just different colors. For example, Tubby was all black and Cracker Jack is orange and white. They are both of the domestic short hair breed, they are just different colors.
Probably confused you more here.......
Tubby
Spring 1986 - Dec. 11, 2004
RIP Big Boy
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Peanut
Fall 1988 - Jan. 24, 2007
RIP Snotty Girl
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Robin
Fall 1997 - Oct. 6, 2012
RIP Sweet Monkeyhead Girl
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