Author: Anonymous

Which type of inhibitor typically binds to an allosteric site on an enzyme?

A 39 kDa protein would consist of approximately ______ amino acids.

An experiment calls for 325 ml of 45% w/v solution of NaCl (Mw = 58.44). How many grams of NaCl are needed?

You measure a solution containing BSA (ε = 43,824 M-1 cm-1) in the spectrophotometer. The absorbance is 0.5. What is the concentration of BSA?

An experiment calls for 475 ml of 65 mM Tris (Mw = 121.14 g/mol), and you have a 4 M stock of Tris. How many milliliters of Tris are needed to make this solution?

You have a stock of DNA ligase at 50,000 units/µl. You need 5,000 units of ligase in a 25 µl reaction, how many microliters of ligase do you need?

A large gathering of experts in a scientific field (such as the Tuberculosis Consortium, or an Emerging Infectious Diseases Meeting) is a(n)

Which micropipette should be used for the most accurate transfer of 50 microliters?

A 150 kDa protein would consist of approximately ______ amino acids.

You analyze a DNA sample which gives an A260 of 1.56 and an A280 of 0.98. What is the concentration of this DNA sample, and is it sufficiently pure?