HUMAN BIOLOGY (LOOSELEAF)-W/CONNECT
16th Edition
ISBN: 9781260692174
Author: Mader
Publisher: MCG
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Chapter 8, Problem 3TC
New antibiotics are often developed by examining haw other species (plants,
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Antibotic/drug resistance in bacteria results from mutations induced by the anitbiotic which enhance fitness of the bacteria ensuring their survival.
a) True
b) False
Give two reasons why bacteria are becoming more and more resistant to antibiotics.
10) If the bacterium Staphylococcus aureus experiences a cost for maintaining one or more antibiotic-
resistance genes, what would happen in environments that lack antibiotics?
A) These genes would be maintained in case the antibiotics appear.
B) These bacteria would be outcompeted and replaced by bacteria that have lost these genes.
C) These bacteria would try to make the cost worthwhile by locating and migrating to
microenvironments where traces of antibiotics are present.
D) The number of genes conveying antibiotic resistance would increase in these bacteria.
11) When nonrandom mating occurs in a population so that individuals prefer to mate with similar
individuals, allele frequencies should
A) remain the same, but homozygotes will be overrepresented in the population.
B) remain the same, but heterozygotes will be overrepresented in the population.
C) change and heterozygotes will be overrepresented in the population.
D) change and homozygotes will be overrepresented in the…
Chapter 8 Solutions
HUMAN BIOLOGY (LOOSELEAF)-W/CONNECT
Ch. 8.1 - Distinguish between a prokaryotic and eukaryotic...Ch. 8.1 - Prob. 2LOCh. 8.1 - Describe the structure of a general virus.Ch. 8.1 - Prob. 1CYPCh. 8.1 - Prob. 2CYPCh. 8.1 - Prob. 3CYPCh. 8.2 - Prob. 1LOCh. 8.2 - Prob. 2LOCh. 8.2 - Prob. 3LOCh. 8.2 - Prob. 1BTH
Ch. 8.2 - Prob. 2BTHCh. 8.2 - Prob. 1BTSCh. 8.2 - Prob. 2BTSCh. 8.2 - Describe the differences among an outbreak, an...Ch. 8.2 - Prob. 2CYPCh. 8.2 - Prob. 3CYPCh. 8.2 - Prob. 4CYPCh. 8.3 - Define the term emerging diseaseCh. 8.3 - Prob. 2LOCh. 8.3 - Prob. 1BTHCh. 8.3 - Prob. 2BTHCh. 8.3 - Distinguish between an emerging disease and a...Ch. 8.3 - Prob. 2CYPCh. 8.3 - Prob. 3CYPCh. 8.4 - Prob. 1LOCh. 8.4 - Prob. 2LOCh. 8.4 - Prob. 1CYPCh. 8.4 - Prob. 2CYPCh. 8.4 - Prob. 3CYPCh. 8 - Prob. 1ACh. 8 - Prob. 2ACh. 8 - Prob. 3ACh. 8 - Prob. 4ACh. 8 - Prob. 5ACh. 8 - Prob. 6ACh. 8 - Prob. 7ACh. 8 - Prob. 8ACh. 8 - Prob. 9ACh. 8 - Prob. 10ACh. 8 - Prob. 1TCCh. 8 - Prob. 2TCCh. 8 - New antibiotics are often developed by examining...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which statements describe ways in which antibiotic resistant bacteria can spread? Health care workers become infected after have interacting with sick patients. Hospital visitors transfer resistant bacteria from patients to family or community members. Animals raised for meat or milk are routinely given antibiotics. Animal feces is used as a fertilizer for food crops. Antibacterial soaps are used at home, at schools, and in hospitals.arrow_forwardDescribe the production of semi-synthetic antibioticsarrow_forwardWhy 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 resistancearrow_forward
- In terms of microbial pathogenicity, molecular Koch's postulates are a set of experimental criteria that show: A microbe is the aetiological agent of a disease A gene encodes a product that contributes to disease A gene encodes a product that contributes to immunity to a disease A mutation does not contribute to diseasearrow_forwardList down different ways on how we can put a stop on the emerging resistance of bacteria against antibiotics and its impact if it continues on.arrow_forwardAntibiotics are widely used in raising livestock in the US. Visit the websites below for the general public and learn a little more about this practice. Denmark has chosen to significantly restrict the use of antibiotics in livestock and can be seen as a potential model for viewing that impact on livestock industry, but Denmark is a small country with different economic constructs than in the US. Although there is controversy about the impact that this practice has in the development of antibiotic resistance of significance to the human population, it is enough to raise concerns and promote discussion about what, if any, action should be taken in the US. POST your response to the following questions, along with a rationale that includes some evidence to support your opinion (reference where your information comes from). 1) After looking at some of the arguments on both sides, do you think a US ban is warranted? 2) Would you be willing to pay more for your food as a result? 3)Is…arrow_forward
- List the 3 organisms from which the greatest numbers of current antibiotics are derived.arrow_forwardDescribe antibiotic resistance and what this could mean for reemerging diseases across the globe?arrow_forwardWhat is a relevant biological process that can be used to briefly explain or illustrate the risks associated with antibiotics?arrow_forward
- Describe the interactions of Agrobacterium tumefaciens with its host plant. Why is this plant pathogen useful for biotechnology?arrow_forwardMake a list of Antibiotics indicating their uses, discoverer, & origin.arrow_forwardBecause of overuse of antibiotics and/or weakened governmental surveillance of infectious disease, several diseasesthat had been thought to be no longer a threat to humanhealth (e.g., pneumonia and tuberculosis) are rapidly becoming unmanageable. In several instances, so-called superbugs(microorganisms that are resistant to almost all known antibiotics) have been detected. How did this circumstancearise? What will happen if this process continues?arrow_forward
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