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Straited/Skeletal Muscles

One myosin fi...

Question

One myosin filament in the myofibril of skeletal muscle fibre is surrounded by how many actin filaments?

A

Two

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B

Four

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C

Six

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D

Three

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Solution

The correct option is C Six
Six actin filaments surround each myosin filament and the active sites of an actin filament are available to three different myosin filaments in the myofibril of skeletal muscle fibre.
Hence the correct option is C.

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Straited/Skeletal Muscles

Standard IX Biology

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