The skin under cats’ coat is a lighter color of their fur. According to mnn.com, a cat’s coat color is a sex-linked trait that is related to its gender. Males have one X chromosome and one Y chromosome, whereas females have two X chromosomes. The X chromosome contains a gene that that controls the orange and black fur. Since females have two X chromosome, they can be tortoiseshell, tabby, or calico. A tortoiseshell cat has orange and black patched fur while, a calico cat (also tortoiseshell) has patches of white fur.
For male cats to be calico, they require one more X chromosome (i.e. 2 X’s and one Y in total). But this is very rare. People having an extra X chromosome is called Klinefelter Syndrome. A cat with this syndrome is said to be sterile. The College of Veterinary Medicine at the University of Missouri by conducting a study found out that 1 out of every 3,000 cats is male.
Dr. Smith from the Central Texas Cat Hospital has only seen two male calicoes in his entire 54-year career. This is Frank – a calico, Scottish fold.
According to Dr. Smith, Frank is one is one in a million!
This picture is of another male calico from Southern Pines Animal Shelter. He is named Sting!
Sting has already found a loving place he can call home. He seems to be liking his new life!
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