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Anonymous
>>50201 Proof of the mice/rats/rabbits not being albino please. There's such things are albino mice/rats/rabbits. Red eyes, pink paws, pink ears, etc.
also. "While there is only one type of ocular albinism, there are at least five types of oculocutaneous albinism, one of which has several subtypes. Some are easily distinguished by appearance, but in most cases, genetic testing is the only way to be sure. Apart from HPS (see below) testing has no medical benefits.
The type with the usually least amount of pigment is Oculocutaneous albinism type 1 (OCA1) (Mendelian Inheritance in Man (OMIM) 203100). People with this type usually have very white skin, white hair and light blue eyes, however there are cases in which the eyes appear red or purple, depending on the amount of pigment present. OCA1 is caused by an alteration of the tyrosinase gene, and can occur in two variations. The first is OCA1A, and means that the organism cannot develop pigment at all. Vision usually ranges from 20/200 to 20/400. The second is OCA1b, which has several subtypes itself. Many individuals with OCA1b can tan and develop pigment. One subtype of OCA1b is called OCA1b TS (Temperature Sensitive), where the tyrosinase can only function below a certain temperature, which causes the body hair in cooler body regions to develop pigment (i.e. get darker). An equivalent mutation produces the coat pattern in Siamese cats.
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