Biology · PYQ NEET UG 2022

Statements related to human Insulin are given below. Which statement(s) is/are correct about genetically engineered Insulin? \ni. Pro-hormone insulin contain extra stretch of C-peptide ii. A-peptide and B-peptide chains of insulin were produced separately in E.coli, extracted and combined by creating disulphide bond between them. iii. Insulin used for treating Diabetes was extracted from Cattles and Pigs. iv. Pro-hormone Insulin needs to be processed for converting into a mature and functional hormone. v. Some patients develop allergic reactions to the foreign insulin. Which of the above statements is/are correct?

1. i, ii and iv only
2. ii, iv and v only
3. i, iii and v only
4. ii, iii and iv only