Q.

The striated appearance of skeletal muscle fibre is due to presence of

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a

Z-line and M – line

b

contractile proteins in thin and thick filaments

c

dark and light bands in myofibril

d

actin and myosin filaments

answer is A.

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Detailed Solution

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The distribution pattern of myosin and actin in dark and light bands is responsible for striations.  All muscles have actin and myosin.

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