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article feedback contact categories art, music, literature, sports & leisure biography geography history life sciences philosophy religion physical sciences political science social sciences what links here keratin previous (kerala) next (kermit roosevelt, jr.) microscopy of keratin filaments inside cells
form the chief, hard, nonmineralized structural component of hair , wool , horns , nails , claws, hooves, and other vertebrate tissues, as well as part of various invertebrate structures. keratins are rivaled as biological materials in toughness only by chitin . keratins are present in all epithelial cells...
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