Please match the viral diagnostic method to its description. Used to directly observe viruses in clinical specimens
A) PCR
B) Immunological testing
C) Electron microscopy
D) Cell and tissue culture techniques
E) Observation of the patient
C) Electron microscopy
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A eukaryotic ribosome stalled by a non-stop mutation can be rescued by:
A. nonsense-mediated mRNA decay. B. non-stop mRNA decay. C. recruitment of release factors. D. degradation of the ribosome.
Species with an equilibrium, or K-selected, life history strategy
A. have only a few offspring. B. are short-lived. C. reproduce at an early age. D. give very little care to their offspring. E. have a large number of offspring.
What is the trade-off in nutrient availability concerning clay soils?
A) high in anion concentration, but clay soils do not hold water well so anions leach away B) Cations are less likely to leach out of soil but are difficult for plants to extract. C) high in both anions and cations, but low pH makes root uptake of ions difficult D) Anions are less likely to leach out of the soil but difficult for plants to extract.
Occasionally when doing Serologic Testing to identify strains of Salmonella isolates, the test for different O Antigens is negative. What is the most likely explanation?
What will be an ideal response?