Select the correct statement with reference to muscle structure
I. Each myosin is a polymerized protein
II. Many meromyosin constitutes one thick filament (myosin)
III. Each meromyosin’s tail is called heavy meromyosin (HMM) and head is called light meromyosin (LMM)
IV. The globular head is an active ATPase enzyme and has binding sites for ATP and active sites for actin
Choose the option with correct statements