Genetics of a Cat's Fur Quiz
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Questions and Answers

What determines the coloration, pattern, length, and texture of a cat's fur?

  • The cat's grooming habits
  • The cat's environment
  • The cat's diet
  • The genetics of the cat (correct)
  • What gene codes for TYRP1, an enzyme involved in the metabolic pathway for eumelanin pigment production?

  • B/b/bl (correct)
  • O/o
  • I/i
  • A/a
  • What gene controls the coding for agouti signaling protein (ASIP)?

  • Orange locus
  • Dilution gene
  • Agouti gene (correct)
  • Maltesing gene
  • What causes the mocha color pattern in Burmese cats?

    <p>A novel mutation</p> Signup and view all the answers

    What causes tortoiseshell cats to have patches of orange fur and black or brown fur?

    <p>X-inactivation</p> Signup and view all the answers

    What was previously theorized to cause blue-eyed and pink-eyed albinism in cats?

    <p>Two distinct alleles</p> Signup and view all the answers

    What gene causes the silver series in cats?

    <p>I/i</p> Signup and view all the answers

    What gene codes for short hair and long hair in cats?

    <p>Length gene</p> Signup and view all the answers

    What is fever coat in cats?

    <p>When a pregnant female cat has a fever or is stressed, causing her unborn kittens' fur to develop a silver-type color</p> Signup and view all the answers

    Study Notes

    Genetics of a Cat's Fur

    • Cat coat genetics determine the coloration, pattern, length, and texture of feline fur.

    • A cat may display the coat of a certain breed without actually being that breed.

    • The browning gene B/b/bl codes for TYRP1, an enzyme involved in the metabolic pathway for eumelanin pigment production.

    • The sex-linked Orange locus, O/o, determines whether a cat will produce eumelanin.

    • Dilution and Maltesing genes affect fur color.

    • The Agouti gene, with its dominant A allele and recessive a allele, controls the coding for agouti signaling protein (ASIP).

    • The non-agouti or "hypermelanistic" allele, a, does not initiate this shift in the pigmentation pathway.

    • Tabby cats are striped due to the agouti gene.

    • The Tabby gene on chromosome A1 accounts for most tabby patterns seen in domestic cats.

    • Tortoiseshells have patches of orange fur and black or brown fur, caused by X-inactivation.

    • White spotting and epistatic white were long thought to be two separate genes, but in fact, they are both on the KIT gene.

    • The colorpoint pattern is most commonly associated with Siamese cats, but may also appear in any domesticated cat.Genetics of Cat Fur Summary

    • The mocha color pattern in Burmese cats is caused by a novel mutation.

    • Mutations in the tyrosine pathway can affect both pigmentation and neurological development, resulting in cross-eyes in colorpoint cats and white tigers.

    • Two distinct alleles causing blue-eyed and pink-eyed albinism respectively have been previously theorized.

    • The silver series is caused by the melanin inhibitor gene I/i which suppresses melanin production, affecting phaeomelanin more than eumelanin. It turns the background of tabbies silver while leaving the stripe color intact and makes solid cats silver smoke.

    • Wide band factors affect the silver band at the base of the hair, making the silver agouti cat range from silver tabby to tipped silver.

    • The golden series is caused by the CORIN gene and results in golden tabbies when combined with the wide band trait.

    • The genetics involved in producing the ideal tabby, tipped, shaded, or smoke cat are complex due to many interacting genes and the expression of genes conflicting with each other.

    • Fever coat is when a pregnant female cat has a fever or is stressed, causing her unborn kittens' fur to develop a silver-type color.

    • The Length gene codes for short hair and long hair. A rare recessive shorthair gene has been observed in some lines of Persian cats.

    • There have been many genes identified that result in unusual cat fur, some of which are in danger of going extinct.

    • Some rex cats are prone to temporary hairlessness, known as baldness, during moulting.

    • Loci for coat color, type, and length have been identified.

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    Description

    Test your knowledge on the genetic factors that determine a cat's fur with our genetics of a cat's fur quiz! From coat color to pattern and length, this quiz covers the various genes and mutations that contribute to a feline's unique appearance. Discover fascinating facts about tabby stripes, tortoiseshell patches, silver and golden tabbies, and more. Whether you're a cat lover or simply interested in genetics, this quiz is sure to challenge and educate you.

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