Q. The heavy meromyosin (HMM) component, i.e the head and short arm projects outwards at regular distance and angle from each other from the surface of a polymerised myosin filament and is known as

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Solution:

The heavy meromyosin (HMM) component, i.e; the head and short arm projects outwords at regular distance and angle from each other from the surface of a polymerised myosin filament and is known as cross arm