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Which of the following is FALSE regarding biomedical laboratory safety?

How do you prepare 500 ml of 40 mM Tris (Mw = 121.14)?

You analyze a DNA sample which gives an A260 of 1.67 and an A280 of 1.22. What is the concentration of this DNA sample, and is it sufficiently pure?

Ebola virus is an extremely high risk organism that is likely to cause disease or death, and it has an aerosol route of entry. There are no current treatments available. A lab that studies this organism would be assigned a rating of

An experiment calls for 275 ml of 35 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?

Which of the following is NOT appropriate PPE for most biomedical research labs?

Using the standard curve below, what is the concentration of a sample that gives an absorbance of 0.3 when 3 microliters of sample are assayed?

What sequence of steps should be performed to obtain purified DNA?

Using the standard curve below, what is the concentration of a sample that gives an absorbance of 0.4 when 8 microliters of sample are assayed?

In a coupled enzyme assay,