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Ninhydrin reacts with lipids in fingerprints and turns purple.

Match the toxin to the system in the body it affects:

Which of the following can you NOT tell from analysis of hair?

How many liters of blood does the human vascular system typically hold?

Which of the following is NOT considered a heavy metal poison?

IN PCR, DNA is first separated by addition of acids to break the hydrogen bonds that pair the nucleotides in the double helix.

Which of the following heavy metals is a liquid at room temperature?

When separating double stranded DNA for analysis, the more G-C pairs there are the longer it takes because G-C regions have more of what than A-T pairs?

Hair and fingernails are composed of the same primary chemical component keratin.

Refer to the following monthly sales and advertising data for a small company. Month       Advertising Expenditures (x, in $100’s)       Sales Revenue, y (in $1,000’s) 1                                 1                                                           1 2                                 2                                                           1 3                                 3                                                           2 4                                 4                                                           2 5                                 5                                                           4 Using the Least Squares Method, estimate the value of