Q. Which of the following pairs of amino acids would carry a negative charge on their side chain at pH 8.0?

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Q. In a polypeptide average mass of an amino acid residue is

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Q. Which pair of amino acids absorbs the most UV light at 280 nm?

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Q. Which of the following is a nonstandard amino acid?

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Q. Which of the following is an essential amino acid?

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Q. Protein fluorescence arises primarily from which residue?

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Q. Which of the following amino acid is known as half-cystine residue?

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Q. Which of the following is not an essential amino acid?

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Q. Which of the following is not a sensible grouping of amino acids based on their polarity properties?

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Q. Proteins and macromolecular structures take on their higher order structures

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Q. During successful purification scheme, this may be expected that the

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Q. In ion-exchange chromatography

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Q. Which of the following may be added to stabilize the protein after yeast cells disruption?

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Q. Gel-filtration chromatography separates on the basis of

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Q. Affinity chromatography deals with the

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Q. A purified protein sample contains 10 μg of protein and has an enzyme activity of 1 m mole of ATP synthesized/sec (1 unit). What is the specific activity of the final purified sample?

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Q. Proteins separation can be carried out on the basis of

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Q. The best way to determine the location of protein in the purification scheme is to measure the

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Q. The conformational changes from the T to the R state is initiated by

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Q. An allosteric activator

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