Question

Read the following statements and select the correct option :
I. In the skeletal muscles fibre, large number of myofilaments are arranged in the sarcoplasmic .
II. The central part of an anisotropic band where the only thick , filament is present and thin filament is absent is called 'A' band.
III. In the resting state , a tropomyosin protein masks the active b binding sites for myosin on the active filaments .
IV. The junction between a motor neuron and the sarcolemma of the muscle fibres is called motor-end plate.

Answer 1

Answer:

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