Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 26.5, Problem 2CC
Summary Introduction
To explain: The reason why numerous base changes in a genome have no effect on the organism’s fitness.
Concept introduction:
Mutations are heritable changes in the genome. It causes diversity in genes. Mutation may be due to chromosomal rearrangement or base changes in DNA such as
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Which characteristics would you expect to be indicativeof horizontal gene transfer?T / F A significant change in %GC in part of the genome of an organismT / F Deletions of gene in the genomeT / F An insertion of a stretch of DNA when aligning sequences from closely related speciesT / F Missing genomic DNA sequences when aligning sequences from closely related speciesT / F Duplications of genes in parts of the genome
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Q4. What is the relationship between the bases displayed when the arrow is pointed to the left versus when it is pointed to the right?
Q5. Why do you think the bases are displayed in this way in the Genome Browser?
Chapter 26 Solutions
Campbell Biology (10th Edition)
Ch. 26.1 - VISUAL SKILLS: Which levels of the classification...Ch. 26.1 - Prob. 2CCCh. 26.1 - Prob. 3CCCh. 26.2 - Decide whether each of the following pairs of...Ch. 26.2 - Prob. 2CCCh. 26.3 - Prob. 1CCCh. 26.3 - Prob. 2CCCh. 26.3 - WHAT IF? Draw a phylogenetic tree that includes...Ch. 26.4 - Explain how comparing proteins of two species can...Ch. 26.4 - WHAT IF? Suppose gene A is orthologous in species...
Ch. 26.4 - Prob. 3CCCh. 26.5 - What is a molecular clock? What assumption...Ch. 26.5 - Prob. 2CCCh. 26.5 - WHAT IF? Suppose a molecular dock dates the...Ch. 26.6 - Why is the kingdom Monera no longer considered a...Ch. 26.6 - Prob. 2CCCh. 26.6 - Prob. 3CCCh. 26 - Humans and chimpanzees are sister species. Explain...Ch. 26 - Why is it necessary to distinguish homology from...Ch. 26 - Prob. 26.3CRCh. 26 - When reconstructing phylogenies, is it more useful...Ch. 26 - Prob. 26.5CRCh. 26 - Prob. 26.6CRCh. 26 - In a comparison of birds and mammals, the...Ch. 26 - To appiy parsimony to constructing a phylogenetic...Ch. 26 - VISUAL SKILLS In Figure 26.4, which similarly...Ch. 26 - Three living species X, Y, and Z share a common...Ch. 26 - Prob. 5TYUCh. 26 - If you were using cladistics to build a...Ch. 26 - VISUAL SKILLS The relative lengths of the frog and...Ch. 26 - EVOLUTION CONNECTION Darwin suggested looking at a...Ch. 26 - SCIENTIFIC INQUIRY DRAW IT (a) Draw a...Ch. 26 - WRITE ABOUT A THEME: INFORMATION In a Short essay...Ch. 26 - SYNTHESIZE YOUR KNOWLEDGE This West Indian manatee...
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- Asap plz Need urgently Typed solution will definitely ratearrow_forwardNeed the answerarrow_forward11 del 156 Chapter 13 Mutations are the source of all change. ? QUESTION Kaybee Kauffer. 3. If a rabbit with the defective gene is not fed plants with the pigment, what color is its fat? Can you see how the environment influences the expression of a trait? 4. What is different about a gene that creates albino color? 5. Describe the variation in the appearance among individuals in a population when a trait is single-gene controlled compared to a trait that is multiple-gene controlled. Mutations A mutation is a change in the sequence of nucleotides in the gene (DNA). A gene can be mutated (changed) by radiation, chemicals in the environment, or other spontaneous events that are surprisingly common on this planet. 1. Which amino acid is supposed to be lined up at codon 6? (Hint: Refer to the table in Exercise #2.) Glutamic Acid GAA 10 na na na na na na na nangy W Codon 6 2. What would happen if a mutation in DNA changed codon 6 in the mRNA to GUA? (This one nucleotide substitution creates…arrow_forward
- 01 Source of DNA Base Percentage Adenine Guanine Cytosine Thymine Sca urchin 32.8 17.7 17.3 32.1 Salmon 29.7 20.8 20.4 29.1 Wheat 28.1 21.8 22.7 E; coli 24.7 26.0 Human 30.4 29.0 a) Explain how the sea urchin and salmon data demonstrate both of Chargaff's rules Using Chargaff's rules, fill in the table with your predictions of the missing percentages of bases starting with the wheat genome and proceeding through coli, human; and ox. Show how you arrived at your answers_ c) If Chargaff's rule-that the amount of A equals the amount of T and the amount of C equals the amount of G ~is valid, then hypothetically we could extrapolate this to the combined DNA of all species on Earth (like one huge Earth genome) . To see whether the data in the table support this hypothesis, calculate the average percentage for each base in your completed table by averaging the values in each column: Does Chargaff's equivalence rule still hold true?arrow_forwardUnder neutrality, what are possible explanations for why a piece of DNA in a given species. might be evolving more slowly than a pseudogene in that species? O a. the mutation rate of the DNA is lower than that of the pseudogene O b. the neutral mutation rate of the DNA is lower than that of the pseudogene O c. the pseudogene is experiencing more directional selection O d. the pseudogene is under greater functional constraint O e. a and b Of cand darrow_forwardHelp.arrow_forward
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