Which of the following methods combines nucleic acid amplification testing and mass spectro-metry (MS) for identification of S. aureus and MRSA?
a. Serodiagnosis
b. CHROMagar
c. The Xpert MRSA/SA test
d. PCR/ESI-MS
D
PCR/ESI-MS is a combination procedure that first utilizes PCR to target specific bacterial spe-cies. When the target organism is present, the amplicons generated during PCR and then utilized in the ESI-MS to determine base composition of the amplicon.
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When bacteria are exposed to nutrient-poor conditions, they form thick-walled structures that contain the chromosome and a small amount of cytoplasm. These structures are called
A. plasmids. B. pseudomonads. C. nucleoids. D. endospores. E. exospores.
The main function of aerobic cell respiration is the production of ____
Fill in the blank(s) with the appropriate word(s).
Plants store their sugar in the form of __________.
a. protein b. glycogen c. starch d. cellulose
Which one of the following statements most closely agrees with the theory of evolution by means of natural selection, as put forth by Darwin?
a. Only the best-adapted organisms will survive. b. Organisms better adapted to their immediate environment are most likely to survive and reproduce. c. Humans arose from chimpanzees. d. Organisms deliberately evolve the structures they need to survive. e. Organisms mutate under unfavorable conditions to become better adapted.