Blog

You analyze a DNA sample which gives an A260 of 1.39 and an A280 of 0.98. What is the concentration of this DNA sample, and is it sufficiently pure?

Biological buffers should

In the kinase assay,

You need to centrifuge a 1 ml sample at 7000 g, separate soluble and insoluble components, and visualize the pellet inside the tube afterwards. Which of the following should you use?  

Mycobacterium tuberculosis is a potentially lethal organism that has an inhalation route of entry. Current treatment involves taking several antibiotics together.  A lab that studies this organism would be assigned a rating of

Steps of protocols are allowed to be omitted from a journal if

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?