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Merle (dog coat) Merle is a genetic pattern in a dog 's coat and alleles of the PMEL gene. It results in different colors and patterns and can affect any coats. The allele creates mottled patches of color in a solid or piebald coat, blue or odd-colored eyes, and can affect skin pigment as well. Two types of colored patches generally appear in a ...
In dogs, the Liver color is caused by dilution of the eumelanin (black) pigment by the B locus. The gene that causes Liver is recessive, so a BB or Bb dog has normal black pigment. Only a bb dog is Liver. There are several different recessive b genes, but they all turn the coat brown. They are only distinguishable through genetic testing. [ 2]
A piebald or pied animal is one that has a pattern of unpigmented spots (white) on a pigmented background of hair, feathers or scales. Thus a piebald black and white dog is a black dog with white spots. The animal's skin under the white background is not pigmented. Location of the unpigmented spots is dependent on the migration of melanoblasts ...
The dog may be smooth-haired, wire-haired, or long-haired. Coloration varies. The dachshund was bred to scent, chase, and flush out badgers and other burrow-dwelling animals. The miniature dachshund was bred to hunt small animals such as rabbits. [5] The dachshund was ranked 9th in registrations with the American Kennel Club in 2022. [6]
The dilute gene d is recessive to the wild type allele D. A gene test can be used to determine a dog's genotype concerning genes for pigmentation. In some dog breeds lightened by the dilute gene, the mutation d is associated with color dilution alopecia (CDA). Since not all breeds in which the gene occurs exhibit these problems, it is suspected ...
Located in Quebec, Canada, The Miller Zoo is a wildlife sanctuary and rehabilitation center and home to a variety of animals. They post a lot of adorable videos of their residents, but the one ...
Dog coat genetics. Dogs have a wide range of coat colors, patterns, textures and lengths. [ 1] Dog coat color is governed by how genes are passed from dogs to their puppies and how those genes are expressed in each dog. Dogs have about 19,000 genes in their genome [ 2] but only a handful affect the physical variations in their coats.
Evolution of color vision in primates. Baboons, like other old world monkeys and apes, have eyes which can discern blue, green and red wavelengths of light. The evolution of color vision in primates is highly unusual compared to most eutherian mammals. A remote vertebrate ancestor of primates possessed tetrachromacy, [ 1] but nocturnal, warm ...