Genetic Analysis: An Integrated Approach (2nd Edition)
2nd Edition
ISBN: 9780321948908
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Chapter 6, Problem 27P
A
a. Speculate about the process by which feeding antibiotics to animals such as cattle might lead to an increase in the number of antibiotic
b. How might the increase in antibiotic
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Penicillin was first used in the 1940s to treat gonorrhea infections produced by the bacterium Neisseria gonorrhoeae. In 1984, according to the CDC, fewer than 1% of gonorrhea infections were caused by penicillin-resistant N. gonorrhoeae. By 1990, more than 10% of cases were penicillin resistant and a few years later the level of resistance was 95%.
Explain the various ways this resistance could be spread among the cells. Could this resistance pass to other infectious bacteria from N. gonorrhoeae?
The bacterium Agrobacterium infects plants and causes plant cells to develop tumorlike
cellular structures and begin synthesizing sets of proteins that protect the bacterium from
the plant immune response, as well as synthesize nutrients that can be used exclusively by
the bacterium.
Researchers testing the efficacy of two new antibiotic treatments against Agrobacterium
are tasked with designing an experiment to test their effectiveness.
Which of the following describes the most appropriate control group in this experiment?
A
B
с
D
a group of infected and untreated plants of the same species
a group of uninfected and untreated plants of a different species
a group of infected and untreated plants of a different species
a group of uninfected and untreated plants of the same species
a) The use of artificial inorganic compounds (like arsenic) to kill agricultural pests took place:
A. during stage 1 of pesticide practice in the United States (from the 1800s to the early 1900s)
B. during stage 2 of pesticide practice in the United States (beginning in the 1930s)
C. during stage 3 of pesticide practice in the United States (beginning in the 1940s)
D. during stage 4 of pesticide practice in the United States (beginnin in the 1960s)
E. all four of the above stages made equal use of artificial inorganic compounds
b) Which of the following successional species would be able to grow the closest to a point source of heavy metal pollution (like the Sudbury smelters in Ontario, Canada)?
A. long-lived species (like sugar maples)
B. mature species (like oak trees)
C. pioneer species (like grasses)
D. intermediate species (like pine trees)
E. all of the above will be equally able to grow close to a point source of heavy metal pollutants
Chapter 6 Solutions
Genetic Analysis: An Integrated Approach (2nd Edition)
Ch. 6 - For bacteria that are F+, Hfr, F', and F-, perform...Ch. 6 - The flow diagram identifies relationships between...Ch. 6 - Conjugation between an Hfr cell and an F-cell does...Ch. 6 - Bacteria transfer genes by conjugation,...Ch. 6 - Explain the importance of the following features...Ch. 6 - Prob. 6PCh. 6 - Describe what is meant by the term site-specific...Ch. 6 - What is a prophage, and how is a prophage formed?Ch. 6 - How is the frequency of cotransduction related to...Ch. 6 - Describe the differences between genetic...
Ch. 6 - Among the mechanisms of gene transfer in bacteria,...Ch. 6 - What is lateral gene transfer? How might it take...Ch. 6 - Lateral gene transfer is thought to have played a...Ch. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - 16. Suppose you have an lysis mutant that maps to...Ch. 6 - Five Hfr strains from the same bacterial species...Ch. 6 - An interrupted mating study is carried out on Hfr...Ch. 6 - An Hfr strain with the genotype cys+leu+met+strS...Ch. 6 - A triple-auxotrophic strain of E. coli having the...Ch. 6 - Penicillin was first used in the 1940 s to treat...Ch. 6 - An attribute of growth behavior of eight...Ch. 6 - Synthesis of the amino acid histidine is a...Ch. 6 - The phage P1 is used as a generalized transducing...Ch. 6 - Prob. 25PCh. 6 - Five rII partial-deletion mutants are mapped and...Ch. 6 - A 2013 CDC report identified the practice of...Ch. 6 - Hfr strains that differ in integrated F factor...
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- During the anthrax crisis of 2001, public health officials urged citizens not to take the antibiotic ciprofloxacin as a preventative measure. Public health officials were concerned that overuse of ciprofloxacin would lead to resistant varieties of anthrax and other bacterial pathogens. Ciprofloxacin is one of the few readily available antibiotics that can treat anthrax. 1)Do you think that public health officials should more directly regulate the availability of ciprofloxacin to ensure its proper use? 2)Why?arrow_forwardWhat is the specific mode of action and the target organisms of each of the three antibiotics used in the exercise (isolation of E. coli bacteriophage)?a. Ampicillin:b. Polymyxin:c. Streptomycin:arrow_forwardRegarding recombinant vaccines, it is INCORRECT to state that: (Only one statement corresponds to the answer) * (a) They are free from infectious viral particles, which increases safety in production and use (b) The development of recombinant vaccines is generally faster than conventional vaccines from inactivated or attenuated pathogens (c) Expansion of production scale is easier than conventional vaccines, since they are produced using fermentation methods in bioreactors (d) The development of recombinant vaccines depends on industrial cultivation methods of the pathogen of interest (e) Recombinant vaccines can be produced on different platforms, such as animal and microorganism cellsarrow_forward
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