Immunological tests may determine the presence of
A. only antibody.
B. only antigen.
C. antigen or antibody.
D. neither antibody nor antigen.
C
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Based on oxygen requirements and metabolic strategies, isolating an epsilonproteobacterium from ________ would likely be MOST fruitful
A) anoxic and sulfate-rich waters B) a plant's rhizosphere C) sulfate-rich anoxic-oxic interfaces D) sulfide-rich soils
The internal solute concentrations of osmoregulators are:
A. either higher or lower than the solute concentration of the external environment. B. similar to the solute concentration of the external environment. C. higher than the solute concentration of the external environment. D. lower than the solute concentration of the external environment. E. None of the answer options is correct.
The holes in Swiss cheese are produced by the metabolic activities of which bacterial genus?
A. Leuconostoc B. Streptococcus C. Propionibacterium D. Lactobacillus
A bacterial polygenic transcription unit ________
A) is void of start (AUG) and termination (UAA, UGA, UAG) triplets B) contains information for more than one protein product C) is capped at the 5? end and carries a poly-A tail at the 3? end D) contains information for one protein product E) None of the answers listed is correct.