Which of the following is not a function of the glycocalyx in prokaryotes?
A. protein synthesis
B. attachment
C. resistance to drying
D. protection from immune system cells
E. production of biofilms
A. protein synthesis
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The use of bacteriophages to map bacterial genes is called ___________
A. generalized transduction B. cotransduction C. transformation D. conjugation E. none of the answers are correct
Which invention led to trans fats being marketed as a solid cooking fat?
a. the electric light b. the telephone c. the automobile d. the microwave oven e. the refrigerator
A simple stain ________.
a. readily differentiates microbial groups b. allows observation of bacterial motility c. improves the contrast between the cell and the background, thus improving the visibility of bacterial cell shapes and structures d. requires two steps: a staining step, then the addition of a mordant to decolorize the specimen
N-Ras, K-Ras, and H-Ras are best described as
a) Three unrelated oncogenes that each cause sarcomas b) Three different cancer-causing mutations found in the same ras gene c) Different activation states of the Ras protein d) Three closely related genes that likely evolved from a single ras gene