Amelanism

（重定向自Amelanistic）

The normal zebrafish embryo, above, shows the migration and maturation of melanocytes. The amelanistic embryo, below, has melanocytes but no melanin.

Amelanistic laboratory mice, such as these, have no pigment in their skin, hair, or eyes. Their eyes are reddish.

Amelanism (also known as amelanosis) is a pigmentation abnormality characterized by the lack of pigments called melanins, commonly associated with a genetic loss of tyrosinase function. Amelanism can affect fish, amphibians, reptiles, birds, and mammals including humans. The appearance of an amelanistic animal depends on the remaining non-melanin pigments. The opposite of amelanism is melanism, an overabundance of melanin.

单词	Amelanistic
释义	Amelanistic 英语百科 Amelanism （重定向自Amelanistic） Amelanism (also known as amelanosis) is a pigmentation abnormality characterized by the lack of pigments called melanins, commonly associated with a genetic loss of tyrosinase function. Amelanism can affect fish, amphibians, reptiles, birds, and mammals including humans. The appearance of an amelanistic animal depends on the remaining non-melanin pigments. The opposite of amelanism is melanism, an overabundance of melanin.
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