To perform the coagulase test on a strain of bacteria that is believed to be S. aureus, the first step is to inoculate a tube of ________ with the strain of interest.
A. nutrient broth
B. mannitol salt medium
C. blood plasma
D. blood
Answer: C
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Exergonic reactions
A. occur when there is more free energy in the products than the reactants. B. occur when there is more free energy in the reactants than the products. C. are defined as a decrease in entropy. D. are chemoorganotrophic.
____ refers to the phase from full maturity
until the eventual death of plant parts or the whole plant.
a. Dormancy b. Photoperiodism c. Abscission d. Senescence e. None of these
Which of the following statements about the process of forensic DNA profiling is INCORRECT?
a) After a profile has been done, a complete DNA sequence is often used to verify the results. b) Since the tests are often run on very small biological samples, like drops of blood, PCR reactions are used to amplify the DNA before the profiling begins. c) The technique takes advantage of the fact that portions of the human genome vary greatly throughout the population. d) The results are always given in terms of the probability that two individual's DNA could give the exact same genetic profile. e) All of the above choices are correct.
What stage of sewage treatment produces methane?
A) primary treatment B) secondary treatment C) tertiary treatment D) sludge digestion E) None of the stages of sewage treatment produce methane.