Brock Biology of Microorganisms (14th Edition)
14th Edition
ISBN: 9780321897398
Author: Michael T. Madigan, John M. Martinko, Kelly S. Bender, Daniel H. Buckley, David A. Stahl, Thomas Brock
Publisher: PEARSON
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Chapter 17.2, Problem 2MQ
Summary Introduction
The composite tree of eukaryotes tells about the phylogenetic relationship between the organisms at the different level of evolutionary phases. The relationships between the super-groups of eukarya can be represented in the form of a phylogenetic tree. The tree which is formed after the determination of sequences of 16S (Swedberg unit) ribosomal RNA genes is referred as ribosomal RNA based tree.
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What problem with the six-kingdom classification system was addressed by the three-domain classification system? How did it address the problem?
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Chapter 17 Solutions
Brock Biology of Microorganisms (14th Edition)
Ch. 17.1 - Prob. 1MQCh. 17.1 - Prob. 2MQCh. 17.1 - Prob. 3MQCh. 17.2 - Prob. 1MQCh. 17.2 - Prob. 2MQCh. 17.2 - Prob. 3MQCh. 17.3 - Prob. 1MQCh. 17.3 - Prob. 2MQCh. 17.4 - Contrast the two nutritional options for Euglena.Ch. 17.4 - Prob. 2MQ
Ch. 17.4 - Prob. 3MQCh. 17.5 - Prob. 1MQCh. 17.5 - Prob. 2MQCh. 17.5 - What are apicoplasts, which organisms have them,...Ch. 17.6 - Prob. 1MQCh. 17.6 - Prob. 2MQCh. 17.6 - Prob. 3MQCh. 17.7 - Prob. 1MQCh. 17.7 - How are chlorarachniophytes thought to have...Ch. 17.8 - Prob. 1MQCh. 17.8 - Compare and contrast the lifestyles of gymnamoebas...Ch. 17.8 - Prob. 3MQCh. 17.9 - What are conidia? How does a conidium differ from...Ch. 17.9 - Prob. 2MQCh. 17.9 - Prob. 3MQCh. 17.10 - Why is the mold Penicillium economically...Ch. 17.10 - Prob. 2MQCh. 17.10 - Prob. 3MQCh. 17.11 - Prob. 1MQCh. 17.11 - Prob. 2MQCh. 17.11 - Prob. 3MQCh. 17.12 - Prob. 1MQCh. 17.12 - Prob. 2MQCh. 17.12 - Prob. 3MQCh. 17.13 - Prob. 1MQCh. 17.13 - Prob. 2MQCh. 17.14 - Prob. 1MQCh. 17.14 - Prob. 2MQCh. 17.15 - What traits link cyanobacteria and red algae?Ch. 17.15 - Prob. 2MQCh. 17.16 - What phototrophic properties link green algae and...Ch. 17.16 - What is unusual about the green algae...Ch. 17.16 - Prob. 3MQCh. 17 - Prob. 1RQCh. 17 - Prob. 2RQCh. 17 - Prob. 3RQCh. 17 - Prob. 4RQCh. 17 - Prob. 5RQCh. 17 - Three groups make up the alveolates: ciliates,...Ch. 17 - Prob. 7RQCh. 17 - REVIEW QUESTIONS
8. What morphological trait...Ch. 17 - Prob. 9RQCh. 17 - Prob. 10RQCh. 17 - Prob. 11RQCh. 17 - Prob. 12RQCh. 17 - Prob. 13RQCh. 17 - Prob. 14RQCh. 17 - Prob. 15RQCh. 17 - Prob. 16RQCh. 17 - Green algae are common in aquatic environments and...Ch. 17 - Explain why the process of endosymbiosis can be...Ch. 17 - Summarize the evidence for endosymbiosis. How...
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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
- Why did Carl Woese propose the domain Archaea? The domain Bacteria already had too many organisms in its classification. The methanogens were discovered to be a complex organism, between prokaryotic bacteria and eukaryotes, thus it needed its own domain. He discovered that methanogens were too large to be classified as bacteria, but too small to be classified as Eukarya. In analyzing the rRNA of methanogens, he discovered that it was completely distinct from any other bacterial RRNA that had been studied. The DNA of methanogens was discovered to use different nucleotides than those of organisms in Eukarya or Bacteria.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_forwardIn the evolution of the eukaryotic cell, these cells have evolved key changes that include which of the following: a) These cells reproduce by copying their DNA perfectly each generation b) They have their DNA in the nucleoid area c) They have adapted the mesosome membrane system of the prokaryote to form a nucleus and an endoplasmic reticulum d) each new type of new eukaryote cell has its mRNA unchanged from its original mRNA e) none of these are truearrow_forward
- The phylogenetic tree of the OCTN homologs below was generated with the following accession numbers as basis: NP_957143.1 - OCTN of unknown function CDM63451.1 - OCTN specific for ergothioneine transport XP_021324939.1 - OCTN specific for carnitine transport Design the phylogenetic tree to make it look more interesting by highlighting the distinct clades or putting a visual emphasis on the gene you are trying to analyze. Provide a caption for this figure.arrow_forwardThe phylogenetic tree of the OCTN homologs below was generated with the following accession numbers as basis: NP_957143.1 - OCTN of unknown function CDM63451.1 - OCTN specific for ergothioneine transport XP_021324939.1 - OCTN specific for carnitine transport Design the phylogenetic tree to make it look more interesting by highlighting the distinct clades or putting a visual emphasis on the gene you are trying to analyze. Provide a caption for this figure. asap please.arrow_forwardList 3 posttranscriptional changes in eukaryotesarrow_forward
- What does the number of differences in rRNA sequences between two species represent?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_forwardmake a drawing of a phylogenetic tree that contains all 3 domains of life. The tree should include at least three different animals, two plants, chemoheterotrophic bacteria, photoautotrophic bacteria, chemoheterotrophic archaea, thermophilic archaea and fungi. Identify both primary endosymbiosis events on the tree and draw a line to connect it to the organism that would become the future organelle.arrow_forward
- Geneticists have determined the amount of DNA, the number of different genes, and the size of the cell/nucleus in a wide variety of model organisms. as we move up the phylogenetic scale, the amount of DNA/cell increases much more rapidly than does the volume in which that DNA must be packaged. How do higher organisms package their DNA in the interphase cell?arrow_forwardWhat genes from the mitochondrion are also used for phylogenetic analysis? Can you name and describe atleast 2 genes?arrow_forwardDescribe two main reasons why the proteomes of eukaryotes are usuallymuch larger than their genomes.arrow_forward
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