The term used to describe a disease-causing microorganism is
A) microbe.
B) bacterium.
C) virus.
D) pathogen.
E) infection.
D
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Which of the following could be a choice to track the source of hospital-acquired infections?
a. DNA fingerprinting b. determination of sugar-fermentation patterns c. morphology determination d. Gram stain e. acid-fast stain
The structure identified by the arrow is _____
1.the round window, which is activated by the stirrup
2.the cochlea, made up of the vestibular duct and the tympanic duct
3.the organ of Corti, which is made up of hair cells
4.the tympanic membrane, which vibrates when sound waves hit it
All of the taxa in a monophyletic group can be called a:
a. division. b. class. c. clade. d. phyla. e. derivative.
During the hybridization/annealing phase of a PCR reaction, the primers bind to the target DNA sequence at a specific temperature. What effect would an increase in the GC content of the primer have on the optimal temperature for annealing the primer to a
target DNA sequence? A) the annealing temperature would remain the same B) the annealing temperature would decrease C) the annealing temperature would increase