NEET 2022 Model Paper 2

Read the following statements about insulin and choose the option that states all correct statements.
a. Earlier, insulin was extracted from pancreas of slaughtered cattles and pigs
b. Mature insulin do not contain polypeptide C
c. Mature insulin consists of two short polypeptides: chain A and chain B
d. During commercial production of insulin, chain A and B were produced together, extracted and combined by creating disulphide bonds