Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A brown pigment produced by melanocytes

Etymologies

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Examples

  • Melanin comes in TWO delicious flavours: eumelanin, which is dark brown or black, and pheomelanin, which is reddish yellow.

    Archive 2009-02-01

  • Melanin comes in TWO delicious flavours: eumelanin, which is dark brown or black, and pheomelanin, which is reddish yellow.

    paraphenylenediamine rhymes with ...

  • You can tell just by looking at your friend that she has high levels of pheomelanin and relatively low levels of the pigment eumelanin.

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  • A certain type of plumage coloring, pheomelanin which is a reddish color requires the use of a chemical called glutathione.

    Ars Technica

  • These and most studies on animal pigmentation to date have focused on the melanin system, in which specialized cells known as melanocytes produce either of two pigments-eumelanin or pheomelanin-resulting in different tone and colour of skin, hair and feathers.

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  • However, if someone has high levels of pheomelanin, she will have light hair and dark hair if their pheomelanin levels are low.

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  • Thge varied colors of the iris are a result of the amounts of eumelanin ansd pheomelanin produced by the melanocytes.

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  • The achievement of color for blondes and red-head is made possible by pheomelanin.

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  • High concentration of eumelanin leads to a dark appearance, whereas pheomelanin usually results in a brown or reddish phenotype.

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  • In each species, the gene governs coat colour by dictating the balance between production of dark coloured eumelanin and red-yellow coloured pheomelanin.

    New Scientist - Online News

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