Campbell Biology: Custom Edition
18th Edition
ISBN: 9781323717271
Author: Urry, Cain, Wasserman, Minorsky, Reece
Publisher: PEARSON C
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Textbook Question
Chapter 21.5, Problem 3CC
What are three ways that transposable elements are thought to contribute to genome evolution?
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Chapter 21 Solutions
Campbell Biology: Custom Edition
Ch. 21.1 - Describe the whole-genome shotgun approach.Ch. 21.2 - Prob. 1CCCh. 21.2 - Explain the advantage of the systems biology...Ch. 21.2 - MAKE CONNECTIONS The ENCODE pilot project found...Ch. 21.2 - MAKE CONNECTIONS In Concept 20.2, you learned...Ch. 21.3 - The best estimate is that the human genome...Ch. 21.3 - The Genomes Online Database (GOLD) Website of the...Ch. 21.3 - WHAT IF? What evolutionary processes might...Ch. 21.4 - Discuss the characteristics of mammalian genomes...Ch. 21.4 - VISUAL SKILLS Which of the three mechanisms...
Ch. 21.4 - Contrast the organizations of the rRNA gene family...Ch. 21.4 - MAKE CONNECTIONS Assign each DNA segment at the...Ch. 21.5 - Describe three examples of errors in cellular...Ch. 21.5 - Explain how multiple exons might have arisen in...Ch. 21.5 - What are three ways that transposable elements are...Ch. 21.5 - WHAT IF? In 2005, Icelandic scientists reported...Ch. 21 - How did the Human Genome Project result in more...Ch. 21 - What has been the most significant finding of the...Ch. 21 - Compare genome size, gene number, and gene density...Ch. 21 - Explain how the function of transposable elements...Ch. 21 - How could chromosomal rearrangements lead to the...Ch. 21 - What type of Information can be obtained by...Ch. 21 - Bioinformatics intludes all of the following...Ch. 21 - Homeotic genes (A) encode transcription factors...Ch. 21 - Prob. 3TYUCh. 21 - DRAW IT Below are the amino acid sequences(using...Ch. 21 - EVOLUTION CONNECTION Genes important in the...Ch. 21 - scientific inquiry The scientists mapping the SNPs...Ch. 21 - Prob. 7TYUCh. 21 - SYNTHESIZE YOUR KNOWLEDGE Insects have three...
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- What percentage of the DNA in the genome actually corresponds to genes? How much is actually protein-coding exons? What makes up the rest?arrow_forwardWhat proportion of exons are repeated sequences in the human genome? Is 38% surprising?arrow_forwardThere are two broad classes of transposons. Each class is characterized by its method of "jumping" (either through an RNA intermediate or via excision and insertion) True False Most mutations of evolutionary significance are A)induced B)spontaneous..arrow_forward
- What is a closed genome?arrow_forwardWhat is a nucleosome-free region? Where are such regions typically found in a genome? How are nucleosome-free regions thought to be functionally important?arrow_forwardWhile characterizing a mutation in a gene of interest, you discover that the mutation involves an insertion within the coding sequence of the gene. You suspect that the inserted sequence is a transposon and would like to determine which of the three major transposon families it belongs to. What sequence elements could be looked for within the inserted sequence that would help place it in one of the three families?arrow_forward
- How is it possible that alternative splicing can effectively increase the number of genes in the genome?arrow_forwardOn the basis of current knowledge, the protein-encoding regions account for only about 3% of the human genome. What is the function of the rest of the DNA?arrow_forwardWhen an EcoR1 fragment, which represents the coding region of a human gene X, is cloned into the EcoR1 site upstream of the coding region of a prokaryotic gene (such as GST) (i.e., to make a X-GST fusion protein), what is the chance of an in-frame fusion? Please draw a diagram to explain your answer. Do you need to delete the stop codon of the X gene coding region before fusing it to the GST coding region? Please draw a diagram to explain your answer. Notes: It is NOT known which strand of the human gene X is the template strand for transcription. 2) Both X and GST protein fragments must be produced correctly)arrow_forward
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