Which of the following methods could be used to detect the presence of viable but nonculturable cells of a pathogen in a water or food specimen?
A. Use of enrichment techniques
B. Polymerase chain reaction
C. Culture on selective agar
D. Culture on enriched agar
Answer: B
You might also like to view...
What molecule will allow some bacteria to be resistant to many penicillins?
A. Imipenem B. Aztreonam C. Synercid D. Penicillinase E. Clavulanic acid
F+ cells ____
a. are able to conjugate with donor cells b. are able to conjugate with recipient cells c. are able to conjugate with other F+ cells
d. receive DNA during conjugation e. are infected with a virus
Vasoconstriction is a term that refers to the contraction of muscle in the walls of the blood vessels, thus causing the diameter of the blood vessel to decrease. Which one of the following types of muscle would be involved in this contraction?
A) skeletal B) smooth C) cardiac D) both cardiac and smooth E) both skeletal and smooth
A biome with complex structure, warm weather, plentiful rainfall, and diverse species is a
A. tropical rain forest. B. taiga. C. tundra. D. savanna.