Acid-fast smears should be examined carefully by scanning at least ________ oil immersion fields
a. 100
b. 200
c. 300
d. 400
C
Smears for AFB should be examined by scanning at least 300 oil immersion fields before re-porting a smear as negative.
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Ribosomes ________.
A. translate mRNA into proteins B. are involved in making ATP for eukaryotic cells C. transcribe DNA into mRNA D. are located inside the nucleus in eukaryotic cells
The final step in the scientific method for a
scientist is
a. devising an experiment b. collecting data c. making observations d. report his or her results e. researching the literature for similar investigations
Which of the following is NOT true of
kwashiorkor?
a. it is the result of a diet poor in fatty acids b. symptoms include brittle hair c. symptoms include muscle loss and fatigue d. symptoms include an enlarged liver e. all of these are true of kwashiorkor.
Joan and her doctor notice a suspicious lump in her breast. Joan also has a family history of breast cancer. Which of the following is not a likely next step as they work to determine the cause of the lump?
A. performing a diagnostic mammogram B. genetic testing for mutations in the BRCA1 gene C. taking a biopsy of the lump to look for the presence of cancer cells D. performing a mastectomy to remove all breast tissue in that breast