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    6.

    Which of the following accurately describes the structure of pro-insulin?

    A

    It consists only of A and B peptides connected by disulfide bonds.

    B

    It contains only A and B peptides.

    C

    It contains A and B peptides connected by C-peptide.

    D

    It contains only C-peptide.

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    7.

    Which of these best describes the structure of mature, functional human insulin?

    A

    A single polypeptide chain

    B

    Two polypeptide chains (A and B) linked by disulfide bonds

    C

    Three polypeptide chains (A, B, and C) linked by disulfide bonds

    D

    A complex carbohydrate

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    10.

    In the context of producing genetically engineered human insulin, why is the formation of inclusion bodies in E. coli sometimes considered advantageous despite requiring additional processing steps?

    A

    A. Inclusion bodies protect insulin from proteolytic degradation within the bacterial cell

    B

    B. Inclusion bodies directly facilitate the formation of correct disulfide bonds

    C

    C. Inclusion bodies enhance the solubility and secretion of insulin from the bacterial cell

    D

    D. Inclusion bodies simplify the purification process by eliminating the need for chromatography

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