The Formation of Hair
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Questions and Answers

Which structure is formed when keratin α-helix chains combine in hair formation?

  • Protofilament
  • Fibril
  • Coiled coil (correct)
  • Filament

    • What is the arrangement of the dimers in the coiled coil structure formed by keratin α chains?

  • Anti-parallel rows
  • Staggered anti-parallel rows (correct)
  • Parallel rows
  • Staggered parallel rows

    • How many protofilaments combine to form a filament (protofibril) in hair formation?

  • 8
  • 2
  • 4 (correct)
  • 6

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