Bacteria are prokaryotic cells, i.e., They do not have membrane-delimited nucleus. Eukaryotes have cells with delimited nucleus. Where in these types of cells can dna are found?

1154

Differentiate between gram +ve and gram -ve bacteria.

1032

What are the structures of the products of this reaction, and how are they identified?

2046

Because of dna replication, two dna molecules come to existence. Why is not it correct to assert that two “new” dna molecules are created? What is the name given to the process concerning that fact?

1207

In which oxidation state chromium exhibit different color?

995

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

1976

What type of column is generally used to separate amino acids from each other?

2110

bane the by products when crude oil is refined by distillation

2145

What is the difference between the alpha helix and the beta-sheet protein conformations?

1117

Explain how the production of rna called? What is the enzyme that catalyzes the process?

1050

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 Two ml of above reaction mixture was withdrawn and mixed with 3 ml of Tris–HCl buffer, 5 ml of 125 mM Na2CO3, and 0.5 ml of phenolphthalein (25 mg phenolphthalein/100 ml absolute alcohol).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

2236

Calculate the molar extinction coefficient of a solution containing 5 *10-4 g litre-1 of a biomolecule, molecular weight 275 g mol-1, and absorbance 0.75 in a 1.2 cm cuvette.

3132

What does glycolysis in erythrocytes produce?

1154

Give examples of tautomers.

1168

Explain activation energy?

1022