Kitties have four genes for each cattribute. There is one dominant gene (which is expressed) and three recessive genes. When two cats breed, they each pass forward a gene to compete for their offspring’s dominant gene. If those genes are neighboring genes, there is a chance they will mutate and the kitten will get an entirely different gene. First, the parents each pass forward a gene. Second, there is a chance for mutation. Let’s look at an example. Pretend you have a purebred fabulous and a purebred raisedbrow. Since the parents have the same gene in all four spots, the sire is 100% guaranteed to pass forward the fabulous gene and the dame is 100% guaranteed to pass forward the raisedbrow gene. Fabulous and raisedbrow are neighboring genes and have a 25% chance of mutation to wingtips.* So if you bred these two cats together, you would have a 25% chance of getting a kitten with wingtips (and a 37.5% chance of fabulous, and a 37.5% chance of raisedbrow). But what if the parents were not purebred? What if their genes looked more like this? A cat has a 75% chance of passing forward its dominant gene, so there is a 75% chance this sire will pass forward fabulous and a 75% chance this dame will pass forward raisedbrow. If that happens, then there is a 25% chance they will mutate.* 0.75 * 0.75 * 0.25 = 0.14 = 14% chance of wingtips But what if you don't have a fabulous-eyed cat? What if you just have a simple-eyed cat with a recessive fabulous gene? The probability that the sire will pass forward the recessive fabulous gene (R3) is only 1.5% (see chart below). So the odds of getting a wingtips from this pair is... 0.015 * 0.75 * 0.25 = .0028 = 0.28% In other words, very, very small. BUT IT HAPPENS SOMETIMES! In fact, this is exactly how the first elk was created. His dad had Wild_3 in the R3 spot, his mom had Wild_4 in the D1 spot, they both got passed forward and mutated and...WALAH! The first elk was born. Happy breeding, y'all. *NOTE: The chance of mutation is 25% for low-tier traits only (kai codes 1 through p, see chart below). When we start mutating mutated mutations (genes q through x), the chance of mutation will only be 12.5%. The probabilities of genes being passed forward (by each cat): See updated Trait Chart here.
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