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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?

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

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?

Which type of rotor allows you to spin samples into the best pellet possible?

You want to load DNA onto a gel which has 40 µl wells. How much of a 5X stock of sample loading buffer should be mixed with the DNA to fill up the well?

Which of the following would you use for accurately dispensing a sample in a single dispense, and is considered “to deliver”?

A 400 amino acid protein would weigh approximately ______ kDa.

Collecting data until nonsignificant results become significant is called

An experiment calls for 375 ml of 55 mM Tris (Mw = 121.14 g/mol), and you have a 5 M stock of Tris. How many milliliters of Tris are needed to make this solution?