Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Textbook Question
Chapter 9.1, Problem 2CC
Louis Pasteur is often credited with saying, “Chance favors the prepared mind.” How does this apply to Fleming?
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a) What is the hypothesis of Griffith’s experiment?
b) Why did mouse No. 3 survived?
c) Why did mouse No. 4 died?
d) If Griffith had injected a fifth mouse with a combination of heat-killed R strain bacteria and heat-killed S strain bacteria, would the mouse have died? Give your reason.
All of the following apply to Luria and Delbruck’s 1943 study of mutation rates in E. Coli and T1 phage except:
A) it served as an example of an inflexible test
B) it involved looking for T1-resistant bacteria as an end measure
C) it showed that numbers of mutant organisms observed after T 1 phage were added to the culture tended to vary from experiment to experiment
D) it rejected the possibility of adaptive mutations
E) it supported the concept of spontaneous mutation rates
Alexander Fleming discovered Penicillin, but its full potential as an effective antibiotic was established by other scientists. Name the two scientists.
Chapter 9 Solutions
Prescott's Microbiology
Ch. 9.1 - Prob. 1CCCh. 9.1 - Louis Pasteur is often credited with saying,...Ch. 9.2 - Prob. 1CCCh. 9.2 - Prob. 2CCCh. 9.2 - Prob. 3CCCh. 9.3 - To which antibiotic (A, B, C, D, or E) is the...Ch. 9.3 - Prob. 1CCCh. 9.3 - Prob. 2CCCh. 9.3 - Prob. 3CCCh. 9.4 - MICRO INQUIRY What is the difference between...
Ch. 9.4 - Prob. 2MICh. 9.4 - Prob. 3MICh. 9.4 - MICRO INQUIRY How is the mechanism by which...Ch. 9.4 - Prob. 5MICh. 9.4 - Prob. 1CCCh. 9.4 - Prob. 2CCCh. 9.4 - Prob. 3CCCh. 9.4 - Retrieve, Infer, Apply What are antimetabolites?...Ch. 9.5 - Prob. 1CCCh. 9.5 - Prob. 3CCCh. 9.5 - Prob. 4CCCh. 9.6 - Prob. 1CCCh. 9.6 - Prob. 2CCCh. 9.6 - Prob. 3CCCh. 9.7 - MICRO INQUIRY What is the mechanism by which...Ch. 9.7 - Prob. 1CCCh. 9.7 - Retrieve, Infer, Apply Why is malaria, like...Ch. 9.7 - Prob. 3CCCh. 9.8 - Prob. 1CCCh. 9.8 - Prob. 2CCCh. 9.8 - Prob. 3CCCh. 9.8 - Prob. 4CCCh. 9 - Prob. 1RCCh. 9 - Prob. 2RCCh. 9 - Prob. 1ALCh. 9 - Prob. 2ALCh. 9 - Prob. 3ALCh. 9 - Prob. 4ALCh. 9 - Prob. 5AL
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- What else was unexpected in Griffith's experiment? a. )Griffith recovered infectios S train pneumonococci from the heart of the live mice b.)Griffith recovered infectios S train pneumonococci from the heart of the dead mice c.)Griffith recovered infectios R train pneumonococci from the heart of the live mice d.) Griffith recovered infectios R train pneumonococci from the heart of the live micearrow_forwardwhat is Bacteriostasisarrow_forwardWhat does a bacteriophage accomplish with lysogeny? O 1) it allows the bacteriophage to destroy the host cell's DNA. 2) it enables the bacteriophage to take over the cell. O 3) it speeds up the viral infection cycle. 4) it allows the bacteriophage to infect cells it would not normally infect. O 5) the genetic material of the bacteriophage can be passed on to future generations of infected cells.arrow_forward
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