In an immunodiffusion test to diagnose histoplasmosis, a patient's serum is placed in a well in an agar plate. In a positive test, a line forms as the serum diffuses from the well and meets material diffusing from a second well. What type of test is this?
A) an agglutination reaction
B) a precipitation reaction
C) a complement-fixation test
D) an indirect ELISA test
E) a direct ELISA test
B
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You have inherited some old glass baby milk bottles from your grandmother, and you would like to use them instead of plastic bottles. The bottles are placed into a large metal container and placed in the oven at 325°F for about 2 hours. What factor would you change if you wanted the sterilization to occur much quicker?
A. Increase the temperature of the oven by 5 degrees B. Use a pressure cooker to sterilize the bottles with steam C. Place the bottles outside in the sunlight and then place in the oven D. Pour an antimicrobial chemical into the bottles before placing into the oven
Explain what effect histone deacetylase inhibitors would have on gene expression and why they may be an effective anticancer therapeutic because of their impact on tumor suppressor genes
What will be an ideal response?
The part of the genome that encodes protein is called the
A) intron. B) exon. C) exome. D) prodrome.
Which cellular pathway carries information about color and detail from the optic nerves to the brain?
a. mesocellular b. magnocellular c. parvocellular d. pseudocellular