what is the structure and function of pellagra-preventive factor?1 2248
what is the difference between Dowex-1 and Dowex-50 which are used in ion exchange chromatography?1 5884
which solvent mixture is normally used in paper chromatography?1 2676
What are the salient features of chemiosmotic coupling hypothesis?1 2845
what are hydrophobic interactions/1 2214
how do the two comonents of starch differ?1 2171
How much empty space is found in globular proteins?
What is zone electrophoresis?
does glucagon secretion induce sleep in teenagers?why?
Where do hydrophobic and hydrophilic residues usually end up after protein folding?
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.
Which organ and subcellular site are most important for fatty acid biosynthesis?
what is familiar hypercholesterolemia?
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 Two ml of above reaction mixture was withdrawn and mixed with 3 ml of Tris–HCl buffer, 5 ml of 125 mM Na2CO3, and 0.5 ml of phenolphthalein (25 mg phenolphthalein/100 ml absolute alcohol).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 the difference between Phospholipids and phosphosphingosides?
How do peptides react with cyanogen bromide?
Which vitamins participate, in coenzyme form, in reactions of the tricarboxylic acid cycle?
Two children have a neurological disorder. When cells from the two patients were fused to form heterokaryons containing nuclei from both patients and cultured, the cells displayed normal metabolism. Cells from either patient exhibited abnormal metabolism when cultured separately.what does these results indicate?
How does a random coil differ from an irregularly structured region?
why we use 96 well plate in ELISA plate reader?
what are the steps involved in the calibration of HPLC