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Bio Chemistry Interview Questions
Questions Answers Views Company eMail

what are gangliosides?where they are found?

Biocon,

4 7014

what is reichert-meissl number?

Biocon,

1 5862

what r the two hormones secreted by adrenal medulla?

1 2973

how bile pigments are synthesised?

1 2284

What are the characteristics of an enzyme?

Wipro,

1 2428

What is 'polymerase chain reaction'?

3 3858

What are antibodies?

2 2780

wwhat are haemoglobin buffer systems ?explain them?

1 8279

what is the difference between stereo and optical isomerism?

2 10532

explain the procedure of kilani cyanohydrin synthesis?

1 4011

can you explain the mechanism of muta rotation?

2 10317

what is the difference between conformation and configuration?

8 52720

whhat is the chemical composition of fehling's reagent?

RAA,

5 133344

what are the steps involved in the formation of osazone from glucose?

4 17700

what r artificial sweeteners?

1 2697


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Un-Answered Questions { Bio Chemistry }

What are enantimorphs and diastereomers ?

222


How is the cooling of organs and tissues for medical transplantations associated with the effect of temperature upon enzymatic reactions?

157


What are hydrophobicity scales, and how are they used?

1052


Give the formula for baking soda.

217


Garnet is the ore of which element. Give its chemical formula.

182






What is the quaternary structure of a protein? Do all proteins have quaternary structure?

199


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 Two ml of above reaction mixture was withdrawn and mixed with 3 ml of Tris–HCl buffer, 5 ml of 125 mM Na2CO3, and 0.5 ml of phenolphthalein (25 mg phenolphthalein/100 ml absolute alcohol).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

1299


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

1677


What is the Chemical formula for Epsom salt?

202


What is hoffman degradation method?

198


Where is csf found?

229


Ethylene on ozonolysis gives which chemical compound?

228


The bond formed between the transition metal ion and ligand is?

204


What is the structure of cscl

200


Differentiate between gram +ve and gram -ve bacteria.

173