Bio Chemistry Interview Questions
Questions Answers Views Company eMail

what is the chemical composition of auxin b?

1 2457

explain the phenomenon of bolting?

2 2922

what is the chemical formula of kinetin?

1 2557




what are the effects shown by morphactins on plants?

1 4204

what are the symptoms of the disease phrynoderma?

1 3867

name the two analogues of vitamin "k" ?

1 2357

how vitamin c is synthesised?

1 2501

what are the principles involved in thin layer chromatography?

Aurobindo, Reddy Labs,

12 31034




what is the difference in the aminoacid sequence in normal haemoglobin and sickle cell anaemic person?

Aurobindo,

3 3502

what is ninhydrin reaction?how it is useful?

Aurobindo, Jubilant,

3 9817

what is PHOSGENE?what is the importance of it?

1 2521

what is ramachandran plot?what r its applications?

Biocon, GVK, SAD,

18 48005

what are the structural differences between alpha keratin and collagen?

Biocon,

2 20356

how haemoglobin acts as an allosteric protein?

Biocon, University,

5 9325

what is niemann-pick disease and what are the disease symptoms?

Biocon,

2 3578


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Un-Answered Questions { Bio Chemistry }

why we use 96 well plate in ELISA plate reader?

1155


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

1311


why life span of RBC IS GREATER THEN THE WBC?

1446


What factors are involved in determining the electrophoretic mobility of a molecule?

961


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

960






How are free energy changes related to LeChatelier's Principle?

851


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

1548


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

1499


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 Two ml of above reaction mixture was withdrawn and mixed with 3 ml of Tris–HCl buffer, 5 ml of 125 mM Na2CO3, and 0.5 ml of phenolphthalein (25 mg phenolphthalein/100 ml absolute alcohol).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

973


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

3173


How does hplc differ from normal column chromatography, and what are its advantages?

1001


In which forms arsenic impurities present in drug.

160


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

1048


How are coupled reactions used in biochemistry?

1181


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

1121