ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
3rd Edition
ISBN: 9780135964422
Author: Urry
Publisher: PEARSON
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Chapter 24.4, Problem 1CC
Explain how molecular systematics and metagenomics have contributed to our understanding of the phylogeny and evolution of prokaryotes.
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Chapter 24 Solutions
ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
Ch. 24.1 - What hypothesis did Miller test in his classic...Ch. 24.1 - How would the appearance of protocells have...Ch. 24.1 - Prob. 3CCCh. 24.1 - Prob. 4CCCh. 24.2 - Contrast the cellular and DNA structures of...Ch. 24.2 - Distinguish between the four major modes of...Ch. 24.2 - Prob. 3CCCh. 24.2 - Prob. 4CCCh. 24.3 - Although rare on a per gene basis, new mutations...Ch. 24.3 - Distinguish between the three mechanisms by which...
Ch. 24.3 - In a rapidly changing environment, which bacterial...Ch. 24.3 - WHAT IF? If a nonpathogenic bacterium were to...Ch. 24.4 - Explain how molecular systematics and metagenomics...Ch. 24.4 - WHAT IF? What would the discovery of a bacterial...Ch. 24.5 - Explain how prokaryotes, though small, can be...Ch. 24.5 - Prob. 2CCCh. 24.5 - Prob. 3CCCh. 24.5 - Prob. 4CCCh. 24 - Which of the following steps has not yet been...Ch. 24 - Fossilized stromatolites A. more than 2.8 billion...Ch. 24 - Prob. 3TYUCh. 24 - Photoautotrophs use A. light as an energy source...Ch. 24 - Which of the following statements is not true? A....Ch. 24 - Prob. 6TYUCh. 24 - Prob. 7TYUCh. 24 - SCIENTIFIC INQUIRY INTERPRET THE DATA The...Ch. 24 - FOCUS ON EVOLUTION In patients infected with...Ch. 24 - FOCUS ON ENERGY AND MATTER In a short essay (about...Ch. 24 - Prob. 11TYU
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- Which statement is usually true about phylogenetic trees? a) nodes represent points when traits have evolved b) branch tips that are next to each other are more closely related c) the branching pattern describes the hypothesized evolutionary relationships between the taxa d) the order of the branch tips (left to right) indicates which taxa are more advanced evolutionarilyarrow_forwardExplain how horizontal gene transfer complicates ourunderstanding of evolutionary relationships among bacteriaand archaeons.arrow_forwardBeyond the Biological sciences, can other disciplines utilize the methods of phylogenetic systematics? please explainarrow_forward
- Briefly describe one specific example of how phylogenetic analysis has been used to control or treat an infectious disease.arrow_forwarda) What is a phylogenetic tree? b) What is a branch point? c) What are sister taxa? d) What is a ‘rooted’ phylogenetic tree?arrow_forwardselect the correct options: A) For organisms that diverged >74 mya, ignore 3rd base positions within codons because they will offer little phylogenetic information for organisms. B) use different parts ofthe genome to estimate different parts of a phylogeny C) Use only 1st base positions within codons because they increase rapidly at first, then level off as result of single subsitituions at the same sites D) Use slowly evolvong sites in the squecne, such as 2nd base positions within codonsfor analyzing the oldest relationships among organisms.arrow_forward
- Which of the following is FALSE regarding phylogenetic trees? 1) The branch lengths on the tree are scaled to molecular (DNA) changes and/or time. 2)Phylogenetic trees have shown us that there is much more bacterial diversity compared to eukaryotes. 3) Phylogenetic trees show the evolutionary relatedness of different organisms. 4). The branch lengths on the tree depict abiotic and biotic factors affecting speciation.arrow_forwardList three reasons why rRNA genes are suitable for phylogeneticanalyses.arrow_forwardProvide importance of endosymbiotic theory ?arrow_forward
- What problem with the six-kingdom classification system was addressed by the three-domain classification system? How did it address the problem?arrow_forwardThe 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_forwardIn a molecular phylogeny what can serve as a synapomorphy? a.) amino acids b.) homoplasy c.) None of the answers are correct d.) insertions e.) orthologsarrow_forward
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