A clinical microbiologist makes serial dilutions of several antimicrobials in broth, and then incubates each drug dilution series with a standard amount of a patient's isolated pathogen. What is this microbiologist setting up?
A. Kirby-bauer
B. Antibiogram
C. E-test
D. MIC
E. Therapeutic Index (TI)
Ans: D. MIC
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Discuss the necessity and benefits of the Genetic Information Nondiscrimination Act (GINA) of 2008. What will be an ideal response?
What is the difference between Gram-positive and Gram-negative bacteria?
a. Gram-positive bacteria are surrounded by a single membrane, whereas Gram-negative bacteria are surrounded by a double membrane, with an outer membrane that is porous to ions and small molecules. b. Gram-positive bacteria make gramicidin A and Gram-negative bacteria do not. c. Gram-positive bacteria are surrounded by a single membrane, while Gram-negative bacteria have a dual-membrane system with an inner membrane that is porous to small molecules and ions. d. Gram-positive bacteria are motile and Gram-negative bacteria are not.
In gene therapy, what is transferred into an
individual’s body cells?
a. new genomes b. recombinant DNA c. GMOs d. bacterial plasmids e. DNA libraries
Mendel used testcrosses to determine whether he had truebreeding varieties of plants.
a. true b. false