Some of the step involved in the production of humulin are given below. Arrange them in the correct sequence and select the correct option
(i) Synthesis of gene (DNA) for human insulin artifically
(ii) Culturing recombinant E.coli in bioreactors
(iii) Purification of humulin
(iv) Insertion of human insulin gene into plasmid
(vi) Etraction of recombinant gene product from E.coli.
A. ii, `i`, iv, iii, v, vi
B. `i`, iii, v, vi, ii, iv
C. `i`, iv, v, ii, vi, iii
D. iii, v, ii, `i`, vi, iv
