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Dun, also called bay dun, classic dun, or zebra dun is the most common type of dun, and has a tan or gold body with black mane, tail, and primitive markings. Genetically, the horse has an underlying bay coat color, acted upon by the dun gene.
The dun gene lightens some areas of the horse's coat, while leaving a darker dorsal stripe, mane, tail, face, and legs. Depending on whether it acts on a bay, black, or chestnut base coat, the dun gene produces the colors known as bay dun, grullo, and red dun.
A dilution gene that produces what looks like point coloration, but from a completely different genetic mechanism is the dominant Dun gene, which dilutes the color of the body coat but not the points, including primitive markings—a dorsal stripe down the back and, less often, horizontal striping on the upper legs. On a bay base coat the dun ...
Non-dun 1 replaces the tan dun color with the darker brown of bay, but keeps the primitive markings seen on dun. Later a second mutation to the dun gene, called non-dun 2, was able to remove the primitive markings altogether to create the non-striped bay color common today. [7] [8]
Goldman Sachs downgraded Regenxbio Inc (NASDAQ:RGNX), citing gene therapy’s appeal for wet AMD and diabetic retinopathy is uncertain, as most patients are elderly and newer anti-VEGF treatments ...
Every dun horse has a dorsal stripe, and some dun horses also have additional primitive markings. Some non-dun horses may also show primitive markings, namely newborn foals and horses with the non-dun 1 gene. [1] [4] Primitive markings in horses are an example of atavism: preservation of or reversion to ancestral type.
The bay extends from shallow pools to a submarine canyon that reaches depths of nearly 150 metres. While the Risso’s dolphins usually travel in pods of 10 to 30 animals, the sighting of them in ...
Gene C. Meyer, 66, was arrested Wednesday in Eatonville for the 1988 murder and sexual assault of a woman in Appleton, Wisconsin, according to the Outagamie County Sheriff’s Department.
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