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Pune University - Biophysics, Instrumentation & Bioinform, April 2010 (Old Course)

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Total No. of Questions : 5] [Total No. of Pages : 3 P1002 [3725] - 33 M.Sc. MICROBIOLOGY MB - 703 : Biophysics, Instrumentation and Bioinformatics (2005 Pattern) Time : 3 Hours] [Max. Marks : 80 Instructions to the candidates: 1) All questions are compulsory. 2) All questions carry equal marks. 3) Neat well labeled diagrams must be drawn wherever necessary. 4) Use of log tables and electronic pocket calculators is allowed. 5) Assume suitable data if necessary. Q1) Attempt any two of the following: [16] a) Explain the principle behind protein gel electrophoresis. Differentiate between native and SDS gel electrophoresis. b) Explain the principle behind gel filtration chromatography. What will be effect of column size on the separation of proteins? How can we determine the molecular weight of the protein using gel filtration chromatography? c) Explain the working and applications of gas liquid chromatography. Q2) Attempt any two of the following : [16] a) Explain isomerism with respect to the structures of amino acids. Which amino acid is an exception? Draw Fisher projection for an L-amino acid. b) Describe the construction and working of MALDI TOF. Explain the concept of time of flight. c) What is nuclear resonance spectroscopy (NMR)? Explain the terms Chemical Shift and Spin-spin coupling in NMR. P.T.O.

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Additional Info : M.Sc. MICROBIOLOGY, MB - 703 : Biophysics, Instrumentation and Bioinformatics (2005 Pattern), Pune University
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