Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
MyoHbrils show dark and light bands in : (1) cardiac muscles (2) striped muscles (3) unstriped muscles (4) neuronA) 1,2 and 3 are correct.
B) 1 and 2 are correct.
C) 2 and 4 are correct.
D) 1 and 3 are correct.
Correct Answer: B
Solution :
A myofibril has dark and light bands. The dark bands are also called A-bands (Anisoiropic bands). The light bands are also called I-bands (Isotropic bands). Myofibrils show dark and light bands in cardiac muscles and striped muscles.
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