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A dog's coat is composed of two layers: a top coat of stiff guard hairs that help repel water and shield from dirt, and an undercoat of soft down hairs, to serve as insulation. [1] Dogs with both under coat and top coat are said to have a double coat. Dogs with a single coat have a coat composed solely of guard hairs, with little or no downy ...
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. Most genes come in pairs, one ...
One version produces yellow dogs, and a mutation produces black. All dog coat colors are modifications of black or yellow. [2] For example, the white in white miniature schnauzers is a cream color, not albinism (a genotype of e/e at MC1R.) Today, dogs exhibit a diverse array of fur coats, including dogs without fur, such as the Mexican Hairless ...
The pattern of a dog's fur is determined by genes. Heart-kun likely had a heart-shaped design on his coat because he had a collection of genes that induced brown fur, as well as a second collection dictating that the brown fur would be amalgamated with white patterns. [6] Over 200,000 people watched videos of Heart-kun on YouTube. [3]
A melanistic mask (also referred to as a mask or masking) is a dog coat pattern that gives the appearance of a mask on the dog's face. The hairs on the muzzle, and sometimes entire face or ears, are colored by eumelanin instead of pheomelanin pigment. Eumelanin is typically black, but may instead be brown, dark gray, or light gray-brown.
In many dog breeds the Piebald gene is common. The white parts of the fur interrupt the pigmented coat patterns. Dogs that may have a spotted or multicolored coat, are often called piebald if their body is almost entirely white or another solid color with spotting and patches on the head and neck.
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[1]: 4–5 The bluish color extends to the Chow Chow's lips; this is the only dog breed with this distinctive bluish color in its lips and oral cavity (other dogs have black or a piebald pattern skin in their mouths). [1]: 4–5 Another distinctive feature is the curly tail. [1]: 4–5 It has thick hair and lies curled on its back. The nose ...