I am pretty sure that<span> the following which signifies a return to music that has been played before is the second option from the scale represented above : </span><span>B.Da capo sign. I choose this one because it has meaning "from the beginning'' which nicely coincides with the statement in the question.
Do hope it helps!
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What is the Question the statement is not very clear
Answer:
-A disulfide bond joins the sulfur atoms in two adjacent polypeptide chains.
-Permanent wave solution breaks a disulfide bond by adding a hydrogen atom to each of its sulfur atoms.
-The sulfur atoms attach to the hydrogen atom from the permanent waving solution, breaking their attachment to each other.
-Once the disulfide bond is broken, the polypeptide chains can form into their new curled shape. Reduction breaks disulfide bonds and oxidation reforms them.
Explanation:
Hope this helps
