Animals->Cat

A bicolor cat has white fur combined with fur of some other colour , for example black or tabby . There are various patterns of bicolor cat. These range from Van pattern (colour on the crown of the head and the tail only) through to solid colour with a throat locket.
Where there is low-to-medium grade white spotting limited to the face, paws, throat and chest of an otherwise black cat, they are known in the United States as a tuxedo cat or Billicat . High grade bicolor results in Van-pattern cats. There are many patterns between, such as "cap-and-saddle", "mask-and-mantle" and "magpie" (more randomly splashed). Bicolors are found in many breeds, as well as being common in domestic longhair cats and domestic shorthair cats .
Solid colour bicolor cats occur because there is a white spotting gene present along with a recessive allele of the agouti gene , which evens out the usual striped pattern of the colours of the coat. In contrast, tabby cats have an agouti gene that produces striping of the coat. The Abyssinian has agouti (ticked tabby) fur, giving the appearance of even colour with colour-banded hairs.
White spotting can also occur with any of the tabby patterns, resulting in tabby-and-white bicolors. Colorpoint (Himalayan pattern ) cats can have bicolor points, although this variation is not recognized for showing. The body markings of bicolor colorpoints become clearer with age, as the body fur of colorpoint cats darkens as the cats grow older and the white patches become more visible.

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