Question

With regard to insulin choose correct options.
(a) C-peptide is not present in mature insulin.
(b) The insulin produced by rDNA technology has C-peptide.
(c) The pro-insulin has C-peptide.
(d) A-peptide and B-peptide of insulin are interconnected by disulphide bridges.
Choose the correct answer from the options given below.

• A. (b) and (d) only
• B. (b) and (c) only
• C. (a), (c) and (d) only
• D. (a) and (d) only

Answer 1

Answer: (C)

C peptide present in proinsulin is removed during its maturation. The insulin produced by rDNA technology has only $A$ peptide and $B$ peptide.