Answered: The over prescription of antibiotics…

The over prescription of antibiotics has been proposed to have lead to an increase in antibiotic resistance in bacteria. How might this increased resistance have evolved

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter11: Evolution And Its Processes

Section: Chapter Questions

Problem 9RQ: The fact that DNA sequences are more similar in more closely related organisms is evidence of what?...

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Concept explainers

Prokaryotic evolution

The term evolution means the gradual change or a transformation from a simple or primitive state to a complex or advanced state. Prokaryotic evolution is a concept that involves the evolution of the form and function of most primitive organisms (prokaryotes) through several stages and changes to form diverse life as a part of organic evolution.

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When you receive a prescription for an antibiotic, your doctor or pharmacist will tell you that it is very important to take the medication for the full time period, even if you start to feel better before the end of the prescription. Explain why/how, if you stop taking the medication early, you could be contributing to the evolution of resistant forms of bacteria.
Based on what you know about the mechanisms through which the effective antibiotics work, describe ways in which a population of coli resistant to these drugs could evolve. How does this relate to the theory of evolution by natural selection?
The media has recently reported that a high number of patients while staying in the hospital, are gettinginfections caused by antibiotic-resistant bacteria. Using evolutionary theory, explain how this could occur.
How might the evolution of antibiotic resistance in pathogenic bacteria be slowed down or prevented? What might you need to know in order to achieve this aim?
The fact that DNA sequences are more similar in more closely related organisms is evidence of what? a. optimal design in organisms b. adaptation c. mutation d. descent with modification
Describe how scientists use Bacteria resistance to antibiotics as evidence for Evolution
Bacteria evolve rapidly due to horizontal transfer ofgenes, including packets of genes called ____________islands, between bacterial species.
Why is overuse of antibiotics resulting in more antibiotic-resistant strains of bacteria to evolve? A) The normal flora of the patient can no longer to outcompete the pathogen B) The antibiotics create the mutations that result in resistant organisms C) The antibiotic becomes less potent over time leading to resistance D) The patients begin to have less side-effects from the antibiotics E) The antibiotics provide the selective pressure for resistance
Describe how scientists use each of the following as evidence for evolution; a. Bacterial resistance to antibiotics b. Comparative biochemistry c. The fossil records
As people use more of an antibiotic, the number of bacteria that are resistant to that antibiotic increase. Which statement describes a mechanism behind this trend? (A.) People’s bodies become more resistant to antibiotics after exposure to them (B.) Antibiotic molecules get weaker over time due to natural selection (C.) The antibiotic kills sensitive bacteria, and any bacteria resistant to it multiply to take their place (D.) Bacteria take up antibiotics and integrate them into their own DNA
What are your thoughts regarding the evolution of antibiotic resistant bacteria. Also find out where the largest stores of antibiotics are, and what humans are doing to contribute to this problem.
How do mutations and selection work together to create antibiotic resistance? Describe how antibiotics act as a selective pressure on a bacterial population and how mutations can lead to bacteria becoming resistant to antibiotics.