Often a graduate student or postdoc will attend an on-campus event or an off-campus large meeting of researchers to present their own data. This is called a(n)

Journals such as Nature, Science, and Cell are ranked according to

How do you prepare 1 L of 60 mM Tris pH 8 (Mw = 121.14), 700 mM NaCl (Mw = 58.44) from a 1 M stock of Tris pH 8? 

You wish to study the effects of of a drug’s concentration on bacterial growth. For this experiment, you alter the drug’s concentration and measure the change in bacterial growth, while making sure the temperature is constant in each sample. Which is the dependent variable?

After generating a cDNA library, what is typically the next step to clone a specific gene?

An experiment calls for 425 ml of 75 mM Tris (Mw = 121.14 g/mol), and you have a 3 M stock of Tris. How many milliliters of Tris are needed to make this solution?

Biological buffers should

You analyze a DNA sample which gives an A260 of 1.15 and an A280 of 0.67. What is the concentration of this DNA sample, and is it sufficiently pure?

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