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The ability of the E locus to override the coat colour directed by the B locus is a classical example of epistasis, where multiple genetic loci affect the same observed trait. [2] In a study of Labrador retrievers in the United Kingdom, it was found that chocolate labradors had a shorter average lifespan than either black or yellow labradors.
Labrador dogs with the dilute gene often suffer from color dilution ... (the E locus) is a receptor on the surface of melanocytes. When active, it causes the ...
Tricolor can also refer to a dog whose coat is patched, usually two colors (such as black and tan) on a white background. Blue merle tricolor Shetland Sheepdog: Red merle Catahoula Leopard Dogs: Merle: Marbled coat with darker patches and spots of the specified color. Merle is referred to as "Dapple" in Dachshunds. Tuxedo Lab mix. Tuxedo Collie mix
An agouti dog, also called wolf sable. In dogs, the agouti gene is associated with various coat colors and patterns. [10]The alleles at the A locus are related to the production of agouti-signaling protein (ASIP) and determine whether an animal expresses an agouti appearance and, by controlling the distribution of pigment in individual hairs, what type of agouti.
Equine coat color genetics discusses color genes in horses, including a brief description of dilution genes; Equine coat color describes various colors in horses; Cream gene, describes the process for horses by which the cremello, perlino, smoky cream double-dilute colors are created as well as the buckskin, palomino and smoky black single ...
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A gene is said to be polymorphic if more than one allele occupies that gene's locus within a population. [1] In addition to having more than one allele at a specific locus, each allele must also occur in the population at a rate of at least 1% to generally be considered polymorphic. [2] Gene polymorphisms can occur in any region of the genome.
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