![]() ![]() This process is exactly the same with tortie, calico and caliby cats (a caliby is a torbie with the addition of white).Īs the male cat (XY) only carries one copy of the X chromosome, he will either be red or non-red. As a result, some areas will display the brown tabby pattern while others display the red tabby pattern. To prevent a doubling up of genes in the female, one X chromosome in every cell is silenced, in a process known as X chromosome inactivation (XCI). Some calicos have blue, cream, red, brown, or tan. Most calicos are white, black, and orange. The term basically means that they are tricolor. Almost every breed of cat has the potential to fall into the calico category. The female carries two X chromosomes, one which carries the brown tabby gene and the other carries the orange tabby gene. The biggest difference between tortoiseshell and calico cats is the presence of white on calicos. Torbie is the least common tabby pattern and is relatively uncommon.įor a cat to be torbie, she must inherit one copy of the red gene and one copy of non-red (usually brown tabby). Tortie is a common coat colour/pattern combination and is widespread among purebred and random-bred cats. ![]() Both torbie and tortie occur in random-bred and some purebred breeds, depending on the breed standard. Torbie and tortie (tortoiseshell) are coat colours and patterns, and not a breed. A tortie (short for tortoiseshell) is made up of random patches of red and black, or blue and cream if the cat carries the dilute gene. The name is a combination of the terms tortoiseshell and tabby. What is the difference between a torbie and a tortie cat?Īlso known as a patched tabby, torbie is a coat pattern made up of patches of red and brown tabby markings.
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