Zoology - Biotechnology and Its Applications Question with Solution | TestHub
Which of the following statements regarding the structure of pro-insulin and mature insulin is INCORRECT?
(i) Pro-insulin is made up of three polypeptide chains-.
(ii) C-polypeptide chain with 33 amino acids is removed prior to insulin formation.
(iii) Mature insulin is made up of 51 amino acids arranged in two polypeptide chains-.
(iv) Polypeptide chain A has 30 amino acids and polypeptide chain B has 21 amino acids.
(v) Polypeptide chains A and B are interconnected by only one S - S linkage.
Options:
Answer:
Solution:
Proinsulin has three polypeptide chains-. The mature insulin has only.polypeptide is removed before the insulin matures. It has 33 amino acids. Mature insulin has 51 amino acids out of which A polypeptide has 21 amino acids and B has 30 amino acids. Polypeptide A and B are interconnected by two disulfide linkages.
