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Its dominant form, B, will produce black eumelanin. It has two recessive variants, b (chocolate) and b l (cinnamon), with b l being recessive to both B and b. [1] Chocolate is a rich dark brown color, and is referred to as chestnut in some breeds. Cinnamon is a light, reddish brown, but is sometimes not reddish at all.
Every hair in the dog coat grows from a hair follicle, which has a three phase cycle, as in most other mammals. These phases are: anagen, growth of normal hair; catagen, growth slows, and hair shaft thins; and; telogen, hair growth stops, the follicle rests, and the old hair falls off—is shed. At the end of the telogen phase, the follicle ...
Woolly hair. Woolly hair is a difficult to brush hair, usually present since birth and typically most severe in childhood. [1] It has extreme curls and kinks, occurs in black people and is distinct from afro-textured hair. [3] The hairs come together to form tight locks, unlike in afro-textured hair, where the hairs remain individual. [1]
The last known Dutch Rex was a female cat of unknown origin found in Amsterdam in the late 1990s. The dominant mutation produced a rex type of coat in the heterozygote and a sparse coat in the homozygote. 1972: Victoria Rex. A curly-furred cat named Tuoh was found in the Victoria area of London. The fur was different from the Devon Rex and the ...
In 2010, DNA analysis confirmed that Sphynx hairlessness was produced by a different allele of the same gene that produces the short curly hair of the Devon Rex (termed the "re" allele), with the Sphynx's allele being incompletely dominant over the Devon allele and both being recessive to the wild type. [9]
A female polydactl cat with opposable thumbs. Sh. Split Foot gene (Syndactyly). A dominant gene that reduces the number of toes resulting in a "lobster-claw" appearance. This is considered an undesirable mutation. Polydactyly. There are probably many genes, both dominant and recessive, that cause polydactyly in cats.
Autosomal recessive woolly hair. Autosomal recessive pattern is the inheritance manner of this condition. Causes. Mutations in the LIPH, LPAR6 or KRT2 genes. Woolly hair autosomal recessive is a rare hereditary hair disorder characterized by sparse, short, curly hair. [1]
It is a recessive gene, characterised mainly by short, curly whiskers. It can appear in both shorthaired and longhaired hamsters. The curls are more visible on the shorthaired and displays as a wavy coat on the longhaired hamsters.
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