The shape of hair is determined in part by the pattern of disulfide bonds in keratin, its major protein. From first to last, arrange the five steps needed to induce permanent curls in hair. First step Last step Last step Answer Bank Keratin's a-helices convert to B-sheets. Keratin's disulfide bonds break. Physically curl the hair. Apply an oxidizing agent. Keratin's disulfide bonds reform to hold shape. Apply a thiol-containing reagent and gentle heat. Keratin's amino acids rearrange into the curled conformation.

I.A thiol containing reagent and Heating(gentle)

II. Disulfide bond Breaker for Keratin

III. curling the hair physically

IV.A good oxidizing agent application

V. Disulfide bonds reformer for keratin  to hold the shape

Explanation:

The hair is mostly made of Keratin which is a structural proteins with about 15% cysteine

In order to change the hair appearance on the outside a reducing agent is required containing a thiol as to reduce the formation of the sulfide and disulfide bridges formation in the hair so the that any changes can be applied without the body naturally turning it back, i-e allowing easier manipulation after this  hairs are to be curled physically in order to keep this a oxidizing agent is applied and then finally a keratin reformer is added to hold the shape

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