Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
10th Edition
ISBN: 9780133922851
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 26.4, Problem 3CC
Summary Introduction
To explain: How a gene could have different functions in different tissues within an organism.
Concept introduction:
Living things are composed of specialized cells, for different functions. However, each cell has same genetic makeup, but the expressions of genes are tissue-specific. There are many regulatory mechanisms that control the expression of a gene. The genetic information in genes is transcribed as messenger RNA (mRNA). The transcribed mRNAs contain non-coding sequences called introns. RNA-splicing is the process that removes the introns present in the mRNA before the instruction for protein synthesis.
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MAKE CONNECTIONS Given that changes in morphologyare often caused by changes in the regulation of geneexpression, predict whether noncoding DNA is likely to beaffected by natural selection. See Concept 18.3 to reviewnoncoding DNA and regulation of gene expression.
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Chapter 26 Solutions
Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (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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- ........ cen not be true about in ditu hybridization. Use to reveal where gene expressed at mrna lvel. perform in none live animal/ tissues. reveal whether 2 genes are active in same cell. determine the function of genearrow_forwardPls help ASAParrow_forwardGive typing answer with explanation and conclusion If you want to identify genes linked to autism in a mouse model, which genetic approach or approaches could you use? (Mark all that apply) A) Reverse Genetics B) Forward Genetics C) Optogenetics D) Population Geneticsarrow_forward
- M2arrow_forwardSequencing of the human genome has revealed much about the organization of genes. Describe the differences between solitary genes, gene families, pseudogenes, and tandemly repeated genes.arrow_forward. You receive four strains of yeast in the mail, and theaccompanying instructions state that each strain contains a single copy of transgene A. You grow the fourstrains and determine that only three strains expressthe protein product of transgene A. Further analysisreveals that transgene A is located at a different position in the yeast genome in each of the four strains.Provide a hypothesis to explain this resultarrow_forward
- 1 and/or 2 pleasearrow_forward5. This diagram illustrates regulation of the Pitx-1 gene, which is expressed in various cell types • during certain stages of animal embryonic development. Answer the questions that follow: Promoter Coding Region Pelvis Olfactory Jaw Regulatory Segments ("Switches") a. Which portion of this sequence gets transcribed and translated into a protein? b. Which portion of this sequence underwent a deletion mutation in certain species of freshwater stickleback fish? Did that mutation have an impact on the amino acid sequence of the protein, when it was expressed? С. d. If this switch underwent the same mutation in a turtle embryo, how would the turtle's phenotype be impacted? е. Would this phenotypic change in the turtle likely be adaptive? Briefly explain.arrow_forwardI need help pleasearrow_forward
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