Author: Anonymous

You wish to include a picture of a gel in a paper. Which of the following is NOT acceptable?

Absorbance and concentration are ________ related, while absorbance and transmittance are ________ related.

To harvest bacteria or yeast in large volumes (e.g. 50 liters) you should use a(n)

Using the standard curve below, what is the concentration of a sample that gives an absorbance of 0.3 when 6 microliters of sample are assayed?

Buffers lose their capacity to resist changes in pH when

The absorbance of a solution is directly proportional to

You analyze a DNA sample which gives an A260 of 1.87 and an A280 of 1.15. What is the concentration of this DNA sample, and is it sufficiently pure?

Escherichia coli is a defined organism with minimal risk of disease, and treatment involves taking antibiotics. A lab that studies this organism would be assigned a rating of

Phosphate buffers are advantageous because

A protocol reports a sample was centrifuged for 15 minutes at 10,000 rpm, but the rotor type is not listed. Which of the following is TRUE?