| 21. | Each pigment cell is situated at the apex of the hexagons and thus lines the outside of three ommatidia.
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| 22. | Melanoma is frequently caused by exposure to the sun, which triggers the uncontrolled growth of skin pigment cells or melanocytes.
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| 23. | In addition to retina and melanoma, OA1 protein product was also detected in human pigment cells like melanosomal membrane glycoprotein.
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| 24. | Humans have only one class of pigment cell, the mammalian equivalent of melanophores, to generate skin, hair, and eye colour.
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| 25. | Since all pigment cell-types differentiate from the same multipotent precursor cell-type, leucism can cause the reduction in all types of pigment.
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| 26. | The increase of these liver pigment cells allow for storage of oxygen, as well as other important ions and free radicals.
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| 27. | Liver pigment cells play an important role in scavenging ions and free radicals in the newt, including the uptake of oxygen.
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| 28. | In intermediate cases, melanocyte migration is slowed, so that the pigment cells arrive late in development and have less time to intermingle.
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| 29. | Dominant white is caused by the absence of pigment cells ( melanocytes ), whereas albino animals have a normal distribution of melanocytes.
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| 30. | Epicocconone is valuable in terms of its ability to pigment cells orange, which then fluoresce red without impacting cell structure or function.
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