guanine crystals

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• Guanine — chembox ImageFile1 = Guanine chemical structure.png ImageSize1 = 150px ImageFileL2 = Guanine 3D balls.png ImageSizeL2 = 100px ImageFileR2 = Guanine 3D vdW.png ImageSizeR2 = 100px IUPACName = 2 amino 1 H purin 6(9 H ) one OtherNames = 2 amino 6… …   Wikipedia

• pearl essence — a nacreous pigment containing guanine crystals derived from scales, e.g. from herrings, used to produce sparkle in metallic paints, lip gloss and iridescent eye shadow and used in simulated pearls and plastics. Guanine crystals are rhombic… …   Dictionary of ichthyology

• guanophore — gua·no·phore (gwahґno for″) [guanine + phore] a cell filled with guanine crystals that produce interference in the light and thus give the cell a silvery or golden appearance; found in the skin of some cold blooded vertebrates such as… …   Medical dictionary

• Eye — For other uses, see Eye (disambiguation), Ocular (disambiguation), Ocular, and Oculus. For taxon specific articles, see human eye, simple eye in invertebrates, mollusc eye, and arthropod eye. Eye …   Wikipedia

• Brownsnout spookfish — Scientific classification Kingdom: Animalia Phylum …   Wikipedia

• Gas bladder — and thus to stay at the current water depth, ascend, or descend without having to waste energy in swimming. cite encyclopedia | title =Fish | encyclopedia =Microsoft Encarta Encyclopedia Deluxe 1999 | publisher =Microsoft | date =1999] The gas… …   Wikipedia

• Cardinal tetra — Scientific classification Kingdom: Animalia Phylum …   Wikipedia

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• Pacific herring — Scientific classification Kingdom: Animalia Phylum …   Wikipedia

• tapetum — (1) Layer of reflective tissue just behind the pigmented retinal epithelium of many vertebrate eyes. May consist either of a layer of guanine crystals, or a layer of connective tissue. In bovine eyes reflects a blue green iridescent colour. (2)… …   Dictionary of molecular biology

• coloration — colorational, adj. colorationally, adv. /kul euh ray sheuhn/, n. appearance with regard to color arrangement or use of colors; coloring: the bold coloration of some birds. [1605 15; COLOR + ATION] * * * ▪ biology Introduction       in biology,… …   Universalium