Diborane contains how many banana bonds?
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What is nucleophilic addition reaction?
which is known as biologic grignard reagent?
Why is not it correct to assert that dna self-replicates?
What is the chemical formula of xylose?
How does molecular exclusion chromatography work?
How do you define the molecularity of a reaction?
what is the special isoprene rule?
6 Answers Ranbaxy, Reddy Labs,
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 Two ml of above reaction mixture was withdrawn and mixed with 3 ml of Tris–HCl buffer, 5 ml of 125 mM Na2CO3, and 0.5 ml of phenolphthalein (25 mg phenolphthalein/100 ml absolute alcohol).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
What is internal energy?
Define ionic product of water. What is its value?
Compare and contrast feedback inhibition and enzyme repression?
why DNA is not directly trsnslated into protein rather than it is using RNA as intermediate?