When a test has high diagnostic sensitivity,  it is a good screening test because there are very few false negative results and thus, will indicate, through a positive result, that the person has the disease or more testing is necessary to rule disease out.

Ensuring the reliability of all steps of a laboratory analytic procedure requires that:

Discuss why it is important to separate cells from serum as soon as possible.  (1 point)

Explain why hemolysis will affect test results?  Name two tests which are altered by hemolysis. (3 points)

When you have a normal Gaussian distribution, the mean, median and mode are equal.

How are antigens most likely presented to naive helper T-cells?

Which of the following statements about T-cells is FALSE?

Use the following molecules for the structures listed.  Note: Structure 1 = lipid/fat Structure 2 = RNA Structure 3 = Carbohydrate/sugar Structure 4 = DNA Structure 5 = Protein

Cell Anatomy

True or False (circle one). Bacteria and archaea have peptidoglycan in their cell walls, while eukaryotes do not have a cell wall.   Briefly justify your answer