A bicolor cat (also bi-colour cat or Tuxedo Cat) is a cat with white fur combined with fur of some other colour, for example, solid black, tabby, or colourpointed.[1] There are various patterns of a bicolour cat. The coat patterns range from the Van-patterned, which has colour on the tail and crown of the head, to a solid colour with a throat locket or medallion.[citation needed] Bicolour coats are found in many cat breeds and are in domestic longhair and domestic shorthair cats.[citation needed]
Tuxedo cats have a low-to-medium grade white spotting limited to the face, paws, throat, and chest of an otherwise black cat. This nickname is used in the United States. [citation needed] Van-patterned cats have high-grade bicolour, which is typical for the Turkish Van breed. There are many patterns, such as "cap-and-saddle", "mask-and-mantle" and "harlequin" (also known as "magpie").[2]
Solid-colour bicolour cats occur because there is a white spotting gene present with a recessive allele of the agouti gene. The agouti gene evens out the striped pattern within coat colours. 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.
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