Bio Chemistry Interview Questions
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Why is it necessary to cleave proteins with at least two different reagents during sequencing?

1 1403

How are coupled reactions used in biochemistry?


Cells are in nonequilibrium, open systems. In what way is thermodynamics useful in this situation?

1 1562

What type of column is generally used to separate amino acids from each other?


Which properties of water are unusual for its size, and caused by hydrogen bonding?

1 1363

What kinds of proteins are involved in facilitating protein folding?

1 1817

What types of molecules can be purified via affinity chromatography?

1 1794

How can proteins be denatured and renatured?

1 2565

What does a sedimentation coefficient measure?

1 1801

How flexible are protein structures?

1 1491

What causes aromatic rings to stick to each other?

1 1558

How does H-bonding in the helix differ from that in the sheet?

1 1224

Why is the t-butyloxycarbonyl protecting group such a good choice for amino acid synthesis?


Why don’t all proteins have methionine as the N-terminal amino acid?

2 3339

How much empty space is found in globular proteins?

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Un-Answered Questions { Bio Chemistry }

i have done M.SC. in biochemistry from india. as i have experience of pharmaceuticals in quality assurance department of 4 i come to know that my degree is valid in uk.i got my comparision letter of degree from uknaric. but i m confuse that what is the next step to do for getiing job in lab? am i eligible to get directly job or as trainee than job ? or to register in ibms or what? pls tell me


All technical,written test questions


why we use 96 well plate in ELISA plate reader?


Which organ and subcellular site are most important for fatty acid biosynthesis?


I have given the protocol for the cyclodextrin glygosyl transferase assay: One ml of appropriately diluted enzyme sample was incubated at 60 °C for 15 min with 5 ml of 1% (w/v) gelatinized soluble starch in 50 mM, 7.0-pH Tris–HCl buffer. Reaction was terminated by boiling the reaction mixture for 3 min and reaction volume was made to 10 ml with distilled water. Two ml of above reaction mixture was withdrawn and mixed with 3 ml of Tris–HCl buffer, 5 ml of 125 mM Na2CO3, and 0.5 ml of phenolphthalein (25 mg phenolphthalein/100 ml absolute alcohol). Absorbance was measured at 550 nm. The percent decrease of sample was calculated with respect to control containing 5 ml of buffer, 5 ml of sodium carbonate and 0.5 ml of phenolphthalein. where Acontrol = absorbance of control and Atest = absorbance of sample. The amount of β-cyclodextrin (β-CD) produced was estimated from the standard graph of 0–500 μg/ml β-CD concentration against % decrease in absorbance. One unit of CGTase was defined as the amount of enzyme required to produce 1 μm of β-CD/min. Please can you suggest me the formula for the defination given in the last line


What is the structural formula of molybdenum blue?


why we use 96 well plate in ELISA plate reader?


During a heart attack, blood flowing to the heart muscle is interrupted by blockage of a coronary artery. How would you expect the metabolism in the heart to change?


Why are right-handed helices more stable than left-handed helices?


does glucagon secretion induce sleep in teenagers?why?


what is meant by codan optimisation m rna enrichment?


what is your passion?


How much empty space is found in globular proteins?


Hi, I am venkat. I am done with M.Sc Medical Biochemistry in the year 2007. I got rejected 3 times at US consulate, and the reason they say is why are you going agian for PG when you have already done PG, and they are not ready to get convinced only on this issue.


How is the actual free energy change for a process related to the standard free energy change?