Enumerating cells in a biofilm is especially challenging for
A) microscopic direct counting.
B) measuring turbidity.
C) viability counts with spread plating.
D) microscopic direct county, measuring turbidity, and viability counts with spread plating.
Answer: D
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What did the researchers conclude based on the data in figure (b)?
A. Cyclophosphamide slowed the growth of tumors but resistance developed. B. Endostatin shrunk tumors but resistance developed. C. Cyclophosphamide slowed the growth of tumors without development of resistance. D. Tumors in untreated cells shrank in size. E. Endostatin shrunk tumors without development of resistance.
The saliva component that begins the breakdown of carbohydrates is ____
a. mucin b. salivary amylase c. water d. pepsin e. bicarbonate
Which protein is defective in cases of Duchenne muscular dystrophy?
a. dystrophin b. albumin c. fibrillin d. fibrinogen e. fibrin
Which of the following occurs in the sexual reproduction phase of the fungus life cycle?
A) Hyphae of two different mating fungi fuse. B) Diploid nuclei form, undergo meiosis, and produce haploid spores. C) Heterokaryotic cells separate to re-create the original haploid hyphae. D) Spores germinate and form a haploid mycelium.