![]() As a result, approximately one in every 3000 calico cats are male. The condition is called Klinefelter syndrome and since these cats have two X chromosomes they can in fact display all three colours. Every now and then, male cats are born with a genetic disorder in which they gain an extra X chromosome. Although it is rare, some male cats can display the calico pattern. Male cats, however, only have one X chromosome which means they can only display one of these colours, either black and white or ginger and white.Īll the best rules have exceptions and as you can imagine, this is also one of them. Since female cats have two X chromosomes they can manifest both colours on their fur, one colour coded by each one of their X chromosomes. On the other hand, the appearance of black and ginger in their fur is transmitted and entirely decided by the X chromosome. The manifestation of white is unrelated to the X and Y chromosomes which means both male and female cats can have white fur. Since male calicos have a genetic abnormality, the majority of them are sterile and therefore unable to reproduce at all. The majority of calico or tortoiseshell males studied were from tortoiseshell/calico females and were either XXY (Klinefelter) or XXXY (chimera) genetic. Both Tabby and Calico are of same weight. That being said, they are unusual in more than just color. ![]() The mechanisms behind the way these genes express themselves, producing these particular fur patterns in cats is absolutely fascinating! Due to the genetic processes involved, the overwhelming majority of calico cats are female. Tabby is originated from United Kingdom but Calico is originated from Egypt. If you are familiar with ´torties` you may recall that tortoiseshell cats can also have ginger and black colours, although these cats don’t have any white in them, often presenting a mottled coat. Their colours can also be distributed in a tabby pattern. There is a wide variety of calico cats since ginger can appear as yellow, orange or red and also because they can display diluted variations of their basic colours such as grey, reddish brown and cream. In fact, the chance of a tortoiseshell or calico cat being male is less than 1 Have you. Can Male Cats Ever be Tortoiseshell In rare cases, a male cat can inherit two X chromosomes in addition to his Y chromosome (Klinefelter Syndrome). These gorgeous felines are basically white, with ginger and black patches of fur. DYK Tortoiseshell and calico cats are almost always female. ![]() Several additional patterns are found in specific breeds and so are not as well known. 1 All five patterns have been observed in random-bred populations. Did you know that only one in every 3000 calico cats are male? This is just another amazing and interesting fact about cats, in this particular case, about calico cats!Ĭalico is the name given to cats that have three colours on their fur. A patched tabby is a cat with calico or tortoiseshell markings combined with patches of tabby coat (such cats are called caliby and torbie, respectively, in cat fancy).
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