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AIIMS2011ZoologyLocomotion and Movement

Skeletal muscles appear striated due to presence of two characteristic proteins in alternating dark and light bands. Which of the following is a correct match of the protein with its light refractive property and colour?

Options

  1. A(a)
  2. B(b)
  3. C(c)
  4. D(d)

Correct answer

D. (d)

Step-by-step solution

Each actin (thin) filament is a polymerised protein made up of two ' F ' (fibrous) actin strands helically wound to each other. Each ' F ' actin is a polymer of monomeric ' G ' (globular) actins. It is light in colour & shows isotropic property.

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