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Which of the following techniques delivers the amino-acid sequence of a peptide?

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Which of the following techniques delivers the amino-acid sequence of a peptide?

(a) Tandem MS

(b) GC-MS

(c) LC-MS

(d) SDS-PAGE

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Correct option is (a) Tandem MS

To elaborate: Tandem MS (also termed MS/MS) is a two-step procedure that gives amino acid sequence of a polypeptide and hence a complete unmistakable identification of an unidentified protein.

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