Which of the following is not an element standardized in susceptibility testing?
A) cation concentration
B) bacterial inoculum size
C) pH
D) patient specimen source
Ans: D) patient specimen source
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Most drug-resistant bacteria isolated from patients contain a(n)
A) R plasmid. B) T1 phage. C) reverse transcriptase. D) ?-lactam.
One hallmark of speciation is ____
a. lack of change in reproductive behaviors b. a decrease in balanced polymorphisms c. an increase in fixed alleles d. decreased genetic diversity of populations
e. end of gene flow between populationsHigh levels of cortisol can mimic the effects of _____ on the _____
a. insulin; liver b. TSH; thyroid c. insulin; muscles d. glucagon; liver e. glucagon; cells
Four of the five answers listed below are terms describing haploid cells. Select the exception
a. ovum b. primary spermatocyte c. spermatid d. polar body e. secondary spermatocyte