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5.6: The Actual Science of Race- Skin Pigmentation and Trichromatic Photoreception

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    324857
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    The color of human skin is one of the most visible and socially charged physical characteristics. While often reduced to simplistic racial categories, the formation of skin color is a masterclass in evolutionary biology and genetic complexity. Simultaneously, the human capacity to perceive this color—and attach social meaning to it—is a function of a sophisticated neurological system. This science of skin pigmentation and the physiology of color vision together provide an essential framework for understanding the social construction of race. The biological reality—a spectrum of adaptive traits shaped by ultraviolet (UV) radiation—stands in stark contrast to the rigid social hierarchies and inequalities built upon perceived color differences. By examining the biochemical pathways of melanin, the evolutionary pressures shaping global pigmentation, and the mechanics of human vision, we can critically deconstruct how a continuous biological trait becomes a discrete social marker with profound real-world consequences.


    This page titled 5.6: The Actual Science of Race- Skin Pigmentation and Trichromatic Photoreception is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Salvador Jiménez Murguía.

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