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[A] : Each myosin filament is composed o...

[A] : Each myosin filament is composed of about 500 thread iike myosin molecules.
[R]: Actin combines with myosin to form a contractiie complex.

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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The correct Answer is:
B
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Read the following statements (i) In cardiac muscle fibres sacroplasmic reticulum is poorly formed (ii)B Blood supply is scanty in case of smooth muscle fibres (iii) Tropomyosin occurs in actin filaments in the form of complexes which are arranged over actin fibres and represent sites where myosin binds to actin. (iv) Salts of citrate and oxalates act as anticoagulants as they precipitate Ca^(2+) Select the correct statements

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