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| | Cat Coat Genetics |
 | | A fl cat with the white spotting gene, giving it a white 'shirtfront' and 'socks' is often referred to as a tuxedo cat, or sometimes a jellicle cat. |
 | | For a cat to be tortoiseshell (random mottled patches of fl and orange or blue and cream) or tortie, it must simultaneously express two alleles, O and o, which are located on the X chromosome. |
 | | A calico cat is a tortoiseshell or patched tabby cat with the white spotting gene, showing a large amount of (mostly) white, with spots of fl and orange or blue and cream, depending on whether the cat has the dense or dilute gene. |
| www.cat-purr.com /about/cat-coat-genetics.htm (1018 words) |
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