Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 26, Problem 14TYK
Summary Introduction
To review:
The understanding of horizontal gene transfer that affects the application of the biological species concept to bacteria.
Introduction:
Horizontal gene transfer (HGT) is also called lateral gene transfer. The transferring of genetic material takes place in multicellular organisms and unicellular organisms. This type of gene transfer forms an important factor in the evolutionary process.
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find an example of a set of genes that have been horizontally gene transferred between bacteria or archaea. Which organisms are the genes transferred between? Explain the set of genes that were transferred. Include what they are for and what the advantage to sharing those genes are.What do the organisms use the genes for?Which organisms the transfer happened between?What might be the advantage be to share the genes with other organisms?
Describe the impact of lateral gene transfer on bacterial genome evolution.
Some degree of genetic exchange occurs in bacteria, which reproduce mostly asexually. What evolutionary factors should be considered in debating whether or not the biological species concept (BSC) can be applied to bacteria?
Chapter 26 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 26.1 - Prob. 1SBCh. 26.1 - Prob. 2SBCh. 26.1 - Prob. 3SBCh. 26.1 - Prob. 4SBCh. 26.2 - What is a biofilm? Give an example of a biofilm...Ch. 26.2 - Prob. 2SBCh. 26.2 - Prob. 3SBCh. 26.3 - Prob. 1SBCh. 26.3 - Prob. 2SBCh. 26.3 - Prob. 3SB
Ch. 26.3 - Prob. 4SBCh. 26 - Prob. 1TYKCh. 26 - A bacterium that uses nitrites as its only energy...Ch. 26 - Prob. 3TYKCh. 26 - At the health center, a fecal sample was taken...Ch. 26 - Which of the following is not a property of an...Ch. 26 - Prob. 6TYKCh. 26 - Penicillin, an antibiotic, inhibits the formation...Ch. 26 - Prob. 8TYKCh. 26 - Prob. 9TYKCh. 26 - Prob. 10TYKCh. 26 - Prob. 11TYKCh. 26 - Prob. 12TYKCh. 26 - Prob. 13TYKCh. 26 - Prob. 14TYKCh. 26 - Prob. 1ITDCh. 26 - The proteobacteria in the genus Pseudomonas are...
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- Analyze the work of Lederberg and Tatum and that of Davis,and explain how the data indicated that some strains of bacteriacan transfer genetic material via direct physical contact?arrow_forwardHow can horizontal gene transfer influence evolution? Would you be able to detect it using phylogeny? What about horizontal gene transfer makes reading bacterial trees difficult?arrow_forwardDiscuss the evolutionary push and pull between small Vs. large genome size in bacteriaarrow_forward
- The hypercycle model explains which of the following? A) How the evolutionary transition from prokaryotic to eukaryotic cells through acquisiton of membrane bound organelles. B) How viruses first originated alongside cellular life through a hyper replicating RNA lineage. C) How individual replicating molecules like RNA, DNA, and proteins entered a molecular mutualism and became encapsulated forming protocells. D) How cycles of heat and electricity experimentally lead to the formation of amino acids in the lab.arrow_forwardThe Selfish Gene is a radical theory that argues that all living creatures are essentially vehicles for their genes- hence, we all are a “survival machine" for our genes. In the light of what you have learned about the molecular structure and function of the gene, is this perspective still relevant? Cite specific biological phenomena to prove your point. References:arrow_forwardWhat is horizontal gene transfer and how can this process potentially change how we view relatedness among the three Domains? Provide an example of a species with characteristics that results from horizontal gene transfer.arrow_forward
- Explain three general mechanisms for horizontal gene transfer.arrow_forwardGive typing answer with explanation and conclusion In thinking about the clinical application of phylogenetics, discuss the role of phylogenetics in these areas. a) Predictions of drug resistance b) Identifying the origin of an outbreak c)Predicting the spread of a diseasearrow_forwardConserved gene order can be termed asa) Orthologb) Syntenyc) Paralogd) Microarrayarrow_forward
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