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Q.

Given below are statements. One is labelled as Assertion A and the other is labelled as Reason R.
Assertion (A) : The head and short arm project outwards at regular distance and angle from each other from the surface of a polymerised myosin filament.
Reason (R) : The head and short arm are made up of heavy meromyosin.
In light of the above statements, choose the correct answer from the options given below.

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a

Both A and R are true and R is the correct explanation of A.

b

Both A and R are true but R is not the correct explanation of A.

c

A is true but R is false. 

d

A is false but R is true.

answer is B.

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Detailed Solution

Both A and R are true but R is not the correct explanation of A.

To form cross bridge with active sites, the head and short arm project outwards at regular distance and angle from each other from the surface of a polymerised myosin filament.

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