Bio Chemistry Interview Questions
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What are the two types of confirmation of a cyclohexane ring?

2 3916

What is the phenomenon of Acrolein test?

1 6727

Explain Cloverleaf model of the t-RNA base sequence of yeast alanine?

1 4067

What are isozymes?

3 6282

What are the common features of active site?

1 15438

how do u synthesise phenanthrene alkaloids?

1 2534

what is the opposing rolling circle model of DNa?

1 3004


1 2085

What is the ping-pong mechanism regarding to enzyme reactions?

2 6806

Explain the principle of ultracentrifuge?

1 23290

What are Neurotransmitters?

1 2237

What is the chemical structure of hyaluronic acid?

1 3106

What is the importance of metabolic water?

2 8705

What is le bel-van?t Hoff rule?

1 3984

What is the action of dicoumarol?

1 2530

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Un-Answered Questions { Bio Chemistry }

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.


Describe the structure of a peptide giving the sequence.


How does a random coil differ from an irregularly structured region?


What are the drawbacks of tissue slices technique?


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


DNA binding by proteins with the helix-turn-helix (HTH) motif does not involve a) altered stacking of the DNA at the center of symmetry. b) hydrogen bonds, salt bridges, and van der Waals contacts. c) interactions with base pairs in the major groove of DNA. d) interactions with the sugar-phosphate backbone of DNA.


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


Which vitamins participate, in coenzyme form, in reactions of the tricarboxylic acid cycle?


why we use 96 well plate in ELISA plate reader?


what is your passion?


How do hydrophobic and hydrophilic residues arrange themselves in globular proteins?


what is your aspiration in profession/ career?


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?


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


What do you like LEAST & MOST about your current position?