DNA Replication and Proofreading Quiz
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Questions and Answers

What is the basic structural unit of a myofibril?

  • Myosarcomere
  • Myofibrilin
  • Fibrillar unit
  • Sarcomere (correct)

    • Which protein forms the thin filaments in a sarcomere?

  • Nebulin
  • Titin
  • Actin (correct)
  • Myosin

    • What is the function of titin in a sarcomere?

  • Regulates calcium ion concentration
  • Anchors the myosin filament to the Z line
  • Provides elasticity and stabilizes the myosin filament (correct)
  • Forms the M line in the sarcomere

    • What is the basic structural unit of a muscle fiber?

    <p>Myofibril</p> Signup and view all the answers

    Which protein makes up the thick filaments in a sarcomere?

    <p>Myosin</p> Signup and view all the answers

    What is the functional unit of a skeletal muscle?

    <p>Sarcomere</p> Signup and view all the answers

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