Bio Chemistry Interview Questions
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why we use 96 well plate in ELISA plate reader?

1118

Glycolysis is A) C6H12O6 --> 2C2H5OH + 2CO2 B) C6H12O6 --> 2CH3H4O3 + 4H c) C3H4O3 + NAD --> C2H5OH + CO2 NAD D) C6H12O6 + 6H20 --> 6CO2 + 6H2O

1431

protine is the substrate found in A) Aerobic respiration B) Protoplasmic perspiration C) seedling stage D) floating respirtaion

2 2659




What is the pore size of nitro cellulose memberane used in soythern blotting technique?

1 1655

Is protein biggerrr than RNA

2 2470

What molecules are present in a typical soap such as sodium stearate and explain how it functions to remove grease from clothes.

1 1960

how will u identify which one of the given 2 test tube contains protein solution or which one contains DNA solution without using any instrument?

5 3394

what are the differences in gene regulations in prokaryotes and that in eukaryotes?

3 3399




Is there any metabolic pathway for water? If not is it possible to provide one?

3 3084

I would like to know what are the main difference in mechanisms of action of: Ascorbic Acid beta-mercaptoethanol and Dimetilsulfoxide (DMSO). thanks in advance.

1 2184

if hydrogen ion concentration of a solution is 90% what will be the ph of that solution?

BITS,

2 3060

1)how can u determine the concentration in an atp solution. (iisc phd interview) 2)why snake venum toxin is not acting as toxin to snake

IISc,

2 8143

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

2970

What is the difference between Gram positive & Gram negative bacteria based on its cell contents?

2 4907

How the pure culture can be produced?

1 2266


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Un-Answered Questions { Bio Chemistry }

Describe the structure of a peptide giving the sequence.

714


The nucleophile in the first stage of the serine protease mechanism is a) H2O b) the carboxyl of Asp 102 c) the hydroxyl of Ser 195 d) the imidazole of His 57

947


does glucagon secretion induce sleep in teenagers?why?

1012


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


Compare and contrast feedback inhibition and enzyme repression?

8108






Where do hydrophobic and hydrophilic residues usually end up after protein folding?

897


Why are free cysteines treated with iodoacetate prior to protein sequencing?

1069


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

1480


What are species grow in waitland?

1218


what is familiar hypercholesterolemia?

1221


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

3074


All technical,written test questions

438


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


why ph is not more than 14?

236


How are coupled reactions used in biochemistry?

1121