Bio-Chemistry (M.Phil./Ph.D.) 2018 Panjab University Entrance Exam With Answers

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35.

A protein has one Tryptophan and two Tyrosine residues. What would be the molar concentration of the protein if its absorbance at 280nm is 1.6 { Extinction coefficient of Trp residue is 5000M-1cm-1 and for Tyr- 1500 M-1cm-1}.

A: 0.2mM
B: 2mM
C: 1.6mM
D: 3.2mM

The answer is: A