Which of the following is CORRECT about protein folding? O a-helix and B-sheets are considered tertiary level of protein structure. The interior of a protein contains mostly charged and polar amino...

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Extracted text: Which of the following is CORRECT about protein folding? O a-helix and B-sheets are considered tertiary level of protein structure. The interior of a protein contains mostly charged and polar amino acid residues. Polar amino acids are largely exposed in the exterior of the protein and in contact with aqueous environment in cells. O Globular proteins contain only alpha-helices.