![]() Nature’s way of correcting this genetic disparity is through a mechanism called “X-chromosome inactivation.” And it is this mechanism that brings about the unique coat patterns in Calico cats! However, because females contain two copies of the x-chromosome, they are at risk of a potentially toxic double dose of x-linked genes. The y-chromosome contains very few genes but the x-chromosome contains over one-thousand genes that are necessary for proper development. You may remember from biology class that females have two x-chromosomes while males have one x- and one y-chromosome. ![]() Did you ever wonder why that is? The answer can be found in the Calico cat ‘s DNA and a phenomenon found in all female mammals called “X-chromosome inactivation.” You’ve probably heard that the vast majority of Calico cats are female. We could write an entire blog post about the Calico genetic traits, but we’ll keep things simple for now. And that pattern is a result of a pretty unique set of genetic traits.Ĭalico genetics is a fascinating topic and there has been much excitement and discussion about them in the research community. Their name comes from the very unique pattern of their coat. And that starts with learning about Calico cat health problems to be aware of.įirst we should mention that Calicos are not a breed of cat unto themselves. If you have a Calico cat or are thinking of bringing one into your life, it’s important to understand how to take the very best care of them. These cats are so beautiful, thanks to their uniquely distinctive coats, that they seem to be able to put a spell on some of us. If you are a cat lover, you probably still remember the first time you saw a Calico in person.
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