Which of the following is a Relaxation protein?: (A) Actin, (B) Myosin, (C) Tropomyosin, (D) Dystrophin
Answer is C. Tropomyosin molecules cover all the active site of actin molecule. It is located in the groove between the two chains of actin. (REF: TEXTBOOK OF MEDICAL PHYSIOLOGY GEETHA N 2 EDITION, PAGE NO - 40)