Biotechnology and Its Applications Question 28
28. Which of the following statements is not correct?
[2020]
(a) The proinsulin has an extra peptide called C-peptide.
(b) The functional insulin has A and B chains linked together by hydrogen bonds.
(c) Genetically engineered insulin is produced in E.Coli.
(d) In man insulin is synthesised as a proinsulin
Show Answer
Answer : b
Hints & Solutions
(b) The correct option is (b) because functional insulin has A and B chains linked together by disulphide bridges. Insulin molecules have a tendency to form dimers in solution due to hydrogen-bonding between the C-termini of B chains.
