Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 18, Problem 14SQ
True or false? Phylogeny helps us study the spread of viruses through human populations.
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Chapter 18 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 18 - In cladistics, the only taxon that is always...Ch. 18 - Prob. 2SQCh. 18 - A clade is _________. a. defined by a derived...Ch. 18 - Prob. 4SQCh. 18 - In cladograms, sister groups are _______ . a....Ch. 18 - Through _______, a body part of an ancestor is...Ch. 18 - Homologous structures among major groups of...Ch. 18 - Prob. 8SQCh. 18 - Mitochondrial DNA sequences are often used in...Ch. 18 - Hawaiian Honeycreeper Phylogeny The Poouli...
Ch. 18 - Prob. 2DAACh. 18 - Hawaiian Honeycreeper Phylogeny The Poouli...Ch. 18 - Hawaiian Honeycreeper Phylogeny The Poouli...Ch. 18 - Molecular clocks are based on comparisons of the...Ch. 18 - True or false? DNA barcoding can identify an...Ch. 18 - A mutation that alters the embryonic expression...Ch. 18 - All of the following data types can be used as...Ch. 18 - True or false? Phylogeny helps us study the spread...Ch. 18 - Prob. 15SQCh. 18 - In the late 1800s, a biologist studying animal...Ch. 18 - The photos shown above illustrate a case of...
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- Choose the correct the correct answer Viral particicles contain both nucleic acid and protein and can replicate inside of a host cell. Technically, this constitutes a "self -replicating molecular assemblage" which is also one way to define life. Therefore, one can conclude that a. Viruses are not living because they don't breathe oxygen b.Viruses are living c.Viruses are not living because they cannot think d. Viruses are not living because this formationis a simple repetitive process without the ability to respond to the environmentarrow_forwardplz give explanation alsoarrow_forward. According to origin-of-life scenarios proposed by William Martin, Michael Russell, and Theodor Diener, the first self-replicating genetic molecules were most similar to: double-stranded RNA viruses single-stranded RNA virusoids single-stranded DNA viruses double-stranded DNA viruses single-stranded RNA viroidsarrow_forward
- Phylogenetic with branch lengths scaled in genetic distance 0.88 0.88 0.93 0.78 2388-3883 232 2002 4⁹29930 9823-2883 0.8 0.82 0.89- Mycobacterium tuberculosis Lineage 2 0.99 2001 90-2004 4484 2005 -0.635 388627805 718356883 11 2002 -83331-9811 74333-2690 $250-2010 10737 2002 203 2001 1511 208201 4701810 2008-2011 6295 29889 8073_2007 0.01 (# substitutions/nucleotide site) 83922889 015 2005 98507_2009 8195 200 46828000 Root-to-tip distance Evolutionary distance from root-to-tip versus sampling time 2.8x10 2.2x10 R²=0.00 1990 1995 2000 00 000 80 2005 000 O oo XBOO8 1. In this figure you can see a phylogenetic tree of samples of Mycobacterium tuberculosis lineage 2 and a corresponding root-to-tip plot. The branch lengths in the tree are scaled by evolutionary/genetic distance, so not by time. In the plot on the right, the summed branch lengths going from the root to the tips of the trees are then plotted against the dates the tips were sampled. What can we conclude from these figures? The…arrow_forwardWhy is the virus phylogeny difficult to resolve (check all that apply) No fossil record Small genomes Rapid mutation rate Super diverse Genes are exactly like cellular organismsarrow_forwardAre viruses alive? Explain your answer by citing proofs that will support your answer to the question.arrow_forward
- Which of the following represents the current system of taxonomy for viruses? Selected Answer: the Baltimore system which relies on the shape of the viral envelope to group viruses. Answers: Using the morphology of the viral particle to group similar shaped viruses. the Baltimore system which relies on the shape of the viral envelope to group viruses. Using the morphology of the capsid and the host organism to group like viruses. the Baltimore system which relies on the type, arrangement and sense of the nucleic acids which make up the gemarrow_forwardWhich of the following represents the current system of taxonomy for viruses? Selected Answer: the Baltimore system which relies on the shape of the viral envelope to group viruses. Answers: Using the morphology of the viral particle to group similar shaped viruses. the Baltimore system which relies on the shape of the viral envelope to group viruses. Using the morphology of the capsid and the host organism to group like viruses. the Baltimore system which relies on the type, arrangement and sense of the nucleic acids which make up the genome to group viruses into like groups.arrow_forwardBased on devolution or the regressive hypothesis, it proposes to explain the origin of viruses by suggesting that they evolved from free-living cells. a. True b. Falsearrow_forward
- Give correct typing answerarrow_forwardFrom the pictures interpret the tree using real branch lengths. What can you infer? How many major clades can you see? Do they belong to the same class, order, family, and genus? Why or why not?arrow_forwardWhat is an advantage of using mtDNA OmtDNA is a much longer sequence compared to chromosomal DNA mtDNA has a larger genome than chromosomal DNA mtDNA does not breakdown as readily as chromosomal DNA mtDNA changes very quickly and can be used to differentiate closely related bacteriaarrow_forward
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