Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
11th Edition
ISBN: 9781488687075
Author: Lisa, A. Urry
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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Chapter 26 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
Ch. 26.1 - VISUAL SKILLS: Which levels of the classification...Ch. 26.1 - Prob. 2CCCh. 26.1 - DRAW IT The bear family (Ursidae) is more closety...Ch. 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 - MAKE CONNECTIONS Explain how the origin of...Ch. 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 - VISUAL SKILLS Based on the tree below, which...Ch. 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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- Need the answerarrow_forward01 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_forward
- (2.1-2.4) - X D myloneStar Login B BIOL 2401 Spring21 Hybrid Am x+ A https://ezto.mheducation.com/ext/map/index.html?_con3con&external_browser%3D0&launchUrl=https%253A%252F%252Fm Saved (2.1-2 4) Place each term or phrase in the proper position to identify the item or process being addressed. Product that has been reduced Reactant being oxidized Reduced coenzyme Oxidizing reaction Reduced hydrogen Reducing reaction Oxidizing agent Reducing agent Oxidized hydrogen Oxidized coenzyme NAD* + 2H NADH + search aarrow_forwardU Introduction to Bioinformatics Midterm AA 18- Protein sequences can be more informative than DNA sequences. Which of the following is NOT one of the reasons? a) Most of the changes in a DNA sequence do not change the amino acid that is specified. b) Protein sequences can provide information on SNPs and differences between individuals that are not translated. sequences. uskudar-sinav-Ims.almscloud.net c) Many amino acids share related biophysical properties and these relationships in an alignment can be used for scoring systems. d) There are 20 characters (amino acids) in a protein sequence whereas DNA has 4 characters (nucleotide bases). e) Protein sequences offer a longer look-back time than DNA Leave blank Closearrow_forward8arrow_forward
- ???arrow_forwardAKS 8a, DOK 2) Some scientist hypothesize that genetically engineering salmon to increase their size and the rate of growth can help meet human demands for protein. Which of these questions addresses the biggest concern scientist should research before releasing the genetically engineered salmon to the wild?arrow_forwardQ1: If all genes are composed of just four nucleotides, how can different genes carry different types of information? Q2: Would you expect to see more variation in the sequence of DNA bases between two members of the same species (such as humans) or between two individuals of different species (for example, humans and chickens)? Explain your reasoning. Q3: Do different alleles of a gene have the same DNA sequence or different DNA sequences?arrow_forward
- 24arrow_forwardConcept 23. A gene is a discrete sequence of DNA nucleotides. This concept describes the discovery of the DNA sequencing technique that made modern biology and bioinformatics possible. The method was later used to sequence the human genome and genomes of many other organisms. This led to the accumulation of great numbers of nucleotide and protein sequences in the numerous databases. The concept 23 web page is here: http://www.dnaftb.org/23/ After reading the Concept page, answer the following questions. What was the Mendel’s definition of a gene? How was it different from the definition by Beadle and Tatum? Describe proteins based on the early sequencing efforts. What was the definition of a protein coding gene based on the genetic code? What are the beginning and ending codons of the gene’s protein coding sequence? What is the name of the method that makes use of a “defective” DNA nucleotide? After reviewing the Animation pages, answer the following…arrow_forwardplease help asap! thanksarrow_forward
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