Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Question
Chapter 21, Problem 6IQ
Summary Introduction
To explain: About the evolution of lysozyme and α lactalbumin for which the genes for both proteins are found in mammals but not in birds.
Introduction: Amino acids are the building blocks of the body. They are synthesized by specific sequence of nitrogenous bases during translation. These amino acids combine to code for specific proteins that are involved in various biochemical processes.
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Chapter 21 Solutions
Study Guide for Campbell Biology
Ch. 21 - In what ways would third-generation sequencing be...Ch. 21 - Prob. 2IQCh. 21 - Refer to the organisms listed in Table 21.1 in...Ch. 21 - Explain why retrotransposons always move by the...Ch. 21 - For each of the following types of DNA sequences...Ch. 21 - Prob. 6IQCh. 21 - Prob. 7IQCh. 21 - If all Hox genes contain the same or very similar...Ch. 21 - About 25% of the human genome relates to the...Ch. 21 - Prob. 2SYK
Ch. 21 - Which of the following has decreased the time and...Ch. 21 - Prob. 2TYKCh. 21 - In the process called gene annotation, computer...Ch. 21 - Prob. 4TYKCh. 21 - Prob. 5TYKCh. 21 - Prob. 6TYKCh. 21 - What is a pseudogene? a. a gene that has been...Ch. 21 - Prob. 8TYKCh. 21 - Which of the following is common to both...Ch. 21 - Prob. 10TYKCh. 21 - Prob. 11TYKCh. 21 - Prob. 12TYKCh. 21 - Prob. 13TYKCh. 21 - Prob. 14TYKCh. 21 - Compared to genes in mice and chimpanzees, most...
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- Comparing DNA sequences in different species indicates that more DNA segments that do not code for protein have been conserved (unchanged) than protein- coding regions. These non-protein-coding regions areinterpreted as gene regulatory elements. Suggest why gene regulatory elements have not undergone many changes during the course of evolution.arrow_forwardGenetic analysis of Mycobacterium leprae, the bacterium that causes leprosy, reveals that its genome has undergone decay over time, losing DNA and acquiring mutations that make some of its genes nonfunctional. What might be some potential reasons for this evolutionary decay of its genome?arrow_forwardHow many globin genes are present in mammals? What is the evidence indicating that all the globin genes in the mammalian genome are part of a family derived from a common ancestral globin gene?arrow_forward
- How do you know if the halibut you purchased at the supermarket is really halibut? To identify the source of a biological sample, scientists PCR amplify and then sequence a region of DNA known to vary between species. For animals, this DNA region is a 648-base pair portion of the mitochondrial cytochrome oxidase I gene. The sequence of this mtDNA region acts as a so-called DNA barcode because a database exists that contains the sequences of this mtDNA region that are unique for hundreds of thousands of animal species. A) Why do you think that a region of mitochondrial DNA is used for barcoding animals, as opposed to a region of nuclear genomic DNA?arrow_forwardDifferent mutations in the WDR62 gene that inactivate gene function were found in the genomes of many different people with microcephaly. This information provided strong support for the idea that the WDR62 gene mutation causes microcephaly. The human genome sequence identified WDR62 as one of the approximately 27,000 genes in the human genome. What information about the function of WDR62 do you think was learned originally from the DNA sequence of the normal human genome? What additional information was provided by identification of WDR62 as the microcephaly disease gene?arrow_forwardWhy is it surprising that humans consumed milk products long before the existence of the gene mutation for digesting lactose?arrow_forward
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