Bio Chemistry Interview Questions
Questions Answers Views Company eMail

what are the two imp charecters of nitrogenase complex?

1 2263

what is familiar hypercholesterolemia?

Ranbaxy,

1221

WHAT IS MSG?

Biological.e.limited,

3 3555




WHAT IS POLENSKE NUMBER?

Biological.e.limited,

1 6525

WHAT IS THE IMPORTANCE OF NIGERICIN?

Biological.e.limited,

2 4109

what is the difference between alpha carotene and beta carotene?

Ion Exchange,

1 11298

how rotenone acts as an inhibitor of electron transport?

Ion Exchange,

1 4291

what are the two renal hormones?

1 2326




what are lac operons?

Biological.e.limited,

5 3841

what is the functionality of bongkrekat?

Biological.e.limited,

1 2605

difference between angiotensin-1 and angiotensin-2?

Biological.e.limited,

1 13331

what is kallidin?

Aurobindo,

1 2738

what are the two types of methylmalonic acidemia(aciduria)?

Aurobindo,

2 2598

Name the 3 hormones present in urine of pregnant women?

Apollo,

1 5399

How the NUCLEOSIDE ANALOGUES ARE USED AS DRUGS?

Reddy Labs,

2 2855


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Un-Answered Questions { Bio Chemistry }

How are free energy, equilibrium and spontaneity related to each other?

962


mutarotation is observed when phenol and pyridine both are present but phenol or pyridine alone cannot show mutarotation-explain why?

2971


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.

951


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.

899


what is familiar hypercholesterolemia?

1221






What is zone electrophoresis?

929


What are the drawbacks of tissue slices technique?

1011


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

804


Compare and contrast feedback inhibition and enzyme repression?

8109


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

914


A 3.00 * 10-6M solution in a 1.0 cm cuvette read 16 % T at 620nm. What were the absorbance and the molar absorbancy index of the solution?

887


What are hydrophobicity scales, and how are they used?

749


The elution volume of an enzyme on a gel filtration column can be predicted from a) its enzyme activity b) its protein absorbance at 280 nm c) subunit composition and monomer molecular mass(es) d) Choices a) and b) are both correct.

1909


How do peptides react with cyanogen bromide?

792


why ph is not more than 14?

236