Which of the following statements is not correct?

Options

AThe proinsulin has an extra peptide called C-peptide.
BThe functional insulin has A and B chains linked together by hydrogen bonds.
CGenetically engineered insulin is produced in E.Coli.
DIn man insulin is synthesised as a proinsulin

Correct answer

B. The functional insulin has A and B chains linked together by hydrogen bonds.

Step-by-step solution

Insulin is a relatively small protein, comprising two polypeptides, one of 21 amino acids (the A chain) and the other of 30 amino acids (the B chain) that are linked together by disulphide bonds/bridges formed between cysteine amino acids.

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