Which of the following locations is likely to harbor a biofilm?

a. our teeth
v. lungs of a cystic fibrosis patient
c. medical devices, such as a pacemaker or catheter
d. all of these locations


Answer: d. all of these locations

Biology & Microbiology

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The ability of glucose to repress the lac operon depends on which of the following effector molecules?

A. allolactose B. cAMP C. tryptophan D. ADP E. starch

Biology & Microbiology

During gel electrophoresis, DNA fragments are separated by size

a. True b. False Indicate whether the statement is true or false

Biology & Microbiology

A fungal infection found mostly in the tropics and temperate regions is characterized by the development of soft, yellow or pale-brown aggregations around hair shafts in the axillary, facial, genital, and scalp regions. The fungus that would most likely be isolated is:

a. Candida. b. Malassezia. c. Cryptococcus. d. Trichosporon.

Biology & Microbiology

The structure that is compared to a whip is a(n)

a. microfilament. b. intermediate filament. c. cilium. d. flagellum. e. microtubule.

Biology & Microbiology