I have been told that all calico cats are Female but i do not see how this is true. because if the calico cat has kittens then it is not for certain that all the kittens with be females. So do you all that answer this have an answer for me? Are all calico cats female? Thank you!!![]()





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(Sorry, I feel like I'm babbling here. And I used to enjoy genetic studies, too, blast it!)

Amberlee is absolutely right. The calico coat color is caused by a coat color gene on the X chromosome, and needs two X chromosomes to appear. Since females have 2 copies of the X chromosome and males only have one, the calico pattern is seen most often in females. However, male cats have been seen with calico coloring because something goes wrong during fertilization or the early stages of fetal development and the fetus winds up with two X-chromosomes and one Y chromosome. This is very uncommon these individuals would most likely be sterile.

(That is my litte Fritz! 
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