From which germ layer do the epidermis and the nervous system originate?

1

What is petroleum?

798

Explain the difference between photodiode & photocell?

996

What is the host defense mechanism shown if the infection is through invasion of host tissues?

615

Why using 10% DMSO for shocking my Cos-7 Cells - after DEAE-Dextran Transfection ?

2168

Explain how a system of chemical reactions can be represented as ODEs and PDEs?

1897

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 Two ml of above reaction mixture was withdrawn and mixed with 3 ml of Tris–HCl buffer, 5 ml of 125 mM Na2CO3, and 0.5 ml of phenolphthalein (25 mg phenolphthalein/100 ml absolute alcohol).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

2238

Explain the relevance of knowledge of History of Mathematics

1152

What are panthers?

977

Explain worm feeds itself by sucking the blood of animals and humans.after feeding, the worm becomes fat and falls off?

1067

How should the Medical Librarian interact with training staff?

2282

What are the different forms of social organization present?

1

Explain the applications of nmr spectroscopy?

983

Why does frame shift mutation (GC gase paired) occurs due to the pesticides in TA98 salmonella tester strain? What is its reason and the mode of action of the pesticides on the CG sequence of the DNA of TA98 strain

2237

What happen to a denaturated enzyme regarding its functionality? How that result can be explained with the help of the lock and key model?

1111