Skeletal muscles appear striated due to presence of two characteristic proteins in alternating dark and…
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?
(a)
(b)
(c)
(d)
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.
