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Biology
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Biology
Which of the following step occurs immediately after binding of Ca2+ with troponin molecule during muscle contraction.
A
Binding sites of actin get attached to the myosin head.
Option A
B
Troponin uncovers the actin binding sites.
Option B
C
Tropomyosin gets removed from the binding sites of actin filaments.
Option C
D
Ca2+ goes back inside sarcoplasmic reticulum.
Option D
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