You have been given two unlabelled samples of PTH-Lysine which has been derivatized either in the α-NH2 or in the ε-NH2g
This outcome reflects genetic engineering, where vector design and pathway extension enable vitamin production. Option A captures this correctly because it utilizes recombinant DNA and metabolic engineering, consistent with textbook descriptions and experimental observations in biotechnology.
Ref: Glick et al., Molecular Biotechnology, 5th Edition, Chapter 4, Molecular Techniques, explains PCR, sequencing, electrophoresis and molecular analysis essential for genetic manipulation.
