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

What is the extinction coefficient of a protein with a concentration of 2.25 μM and absorbance of 0.65?

Which of the following is NOT required by OSHA?

Which of the following is FALSE regarding DNA?

A 725 kDa protein would consist of approximately ______ amino acids.

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?

What would you expect the transmittance of a sample to be if the absorbance was 0.83?

How do you prepare 1 L of 70 mM Tris pH 8 (Mw = 121.14), 300 mM NaCl (Mw = 58.44) from a 1 M stock of Tris pH 8? 

A 500 amino acid protein would weigh approximately ______ kDa.

Which of the following provides inward airflow to remove fumes and volatile compounds?