Please match the test with its description to assess your understanding of the kinds of data collected during information gathering and your understanding of the processes involved in identifying microbes from samples. Tests the organism against known antibodies to determine if there is a reaction between the organism and the antibody
A) Appearance
B) Biochemical tests
C) DNA profiles
D) Immunologic testing
D) Immunologic testing
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Over the past several decades, populations of Staphylococcus aureus (a type of bacteria that infects wounds) have become resistant to penicillin
You run the following experiment: Reference: Ref 14-1 In a different set of experiments, you identify two kinds of mutations in S. aureus. The first type of mutation makes the bacteria more susceptible to antibiotic X; the second type of mutation makes it more resistant to antibiotic X. Which type of mutation is more likely to occur in the population? A. the first type (more susceptible) B. the second type (more resistant) C. It depends if the cell population has been exposed to antibiotic X. D. It depends if either type of mutation confers additional survival benefits to S. aureus. E. There is no difference in likelihood because the mutation is a random event.
When cloning DNA into bacteria, the ____
a. DNA sequence is inserted into a plasmid b. DNA sequence is inserted into the bacterial chromosome c. linear DNA sequence is circularized, thus generating a plasmid d. new DNA is directly introduced into the bacterial cell e. approach depends on the species of host bacteria used in the experiment
Which of the following contribute(s) to the differences between the Archaea and the bacteria?
A. Archaea have isopranyl glycerol ethers rather than fatty acid esters in their membrane lipids. B. Archaea lack muramic acid. C. Archaea differ from bacteria in their tRNA composition, ribosome structure, and antibiotic sensitivity. D. All of the choices are correct.
T cell receptors recognize ______, distinguishing cells that belong to the body from infected body cells.
A. antigens B. MHC markers C. antigens and MHC markers D. complement E. cytokines and complement