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Melanin (/
ˈmɛlənɪn/ ; from
Ancient Gr**** μέλας (mélas) 'black, dark') is a
family of
biomolecules organized as
oligomers or polymers,
which among other...
- skin, is the
darkening of an area of skin or
nails caused by
increased melanin.
Hyperpigmentation can be
caused by sun damage, inflammation, or other...
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Melanin theory is a set of
pseudoscientific claims made by some
proponents of Afrocentrism,
which holds that
black people,
including ancient Egyptians...
- Plant. Most
radiotrophic fungi use
melanin in some
capacity to survive. The
process of
using radiation and
melanin for
energy has been
termed radiosynthesis...
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depending on the
concentration of
melanin in the iris
pigment epithelium (located on the back of the iris), the
melanin content within the iris
stroma (located...
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Examples of
albino laboratory mammals Albinism is the
congenital absence of
melanin in an
animal or
plant resulting in
white hair, feathers,
scales and skin...
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Heterochromia is
determined by the production, delivery, and
concentration of
melanin (a pigment). It may be inherited, or
caused by
genetic mosaicism, chimerism...
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Melanocytes are
melanin-producing
neural crest-derived
cells located in the
bottom layer (the
stratum basale) of the skin's epidermis, the
middle layer...
- hair
follicles and
shafts due to two
types of
melanin:
eumelanin and pheomelanin. Generally, the more
melanin present, the
darker the hair. Its tone depends...
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absence of
melanin in particular, in the eyes, skin, hair, scales,
feathers or cuticle.
While an
organism with
complete absence of
melanin is
called an...
