Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 25.5, Problem 3CC
Summary Introduction
To know: The effect of natural selection on noncoding DNA for altering gene expression.
Introduction: Gene expression is a very important process. The genes are on and off during development as per the requirement of gene product in the body. In simple words, it is a process in which a gene gets expressed which means its
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Chapter 25 Solutions
Campbell Biology
Ch. 25.1 - What hypothesis did Miller test in his classic...Ch. 25.1 - How would the appearance of protocells have...Ch. 25.1 - MAKE CONNECTIONS In changing from an "RNA world"...Ch. 25.2 - Describe an example from the fossil record that...Ch. 25.2 - WHAT IF? Your measurements indicate that a...Ch. 25.3 - The first appearance of free oxygen in the...Ch. 25.3 - What evidence supports the hypothesis that...Ch. 25.3 - WHAT IF? What would a fossil record of life today...Ch. 25.4 - Explain the consequences of plate tectonics for...Ch. 25.4 - What factors promote adaptive radiations?
Ch. 25.4 - Prob. 3CCCh. 25.5 - Explain how new body forms can originate by...Ch. 25.5 - Why is it likely that Hox genes have played a...Ch. 25.5 - Prob. 3CCCh. 25.6 - How can the Darwinian concept of descent with...Ch. 25.6 - Prob. 2CCCh. 25 - Describe the roles that montmorillonite clay and...Ch. 25 - What are the challenges of estimating the ages of...Ch. 25 - What is the "Cambrian explosion," and why is it...Ch. 25 - Explain how the broad evolutionary changes seen in...Ch. 25 - How could changes in a Single gene or DNA region...Ch. 25 - Explain the reasoning behind the Statement...Ch. 25 - Level 1: Knowledge/Comprehension 1. Fossilized...Ch. 25 - The oxygen revolution changed Earth's environment...Ch. 25 - Prob. 3TYUCh. 25 - Prob. 4TYUCh. 25 - Prob. 5TYUCh. 25 - Prob. 6TYUCh. 25 - Prob. 7TYUCh. 25 - EVOLUTION CONNECTION Describe how gene flow,...Ch. 25 - Prob. 9TYUCh. 25 - WRITE ABOUT A THEME: ORGANIZATION You have seen...Ch. 25 - Prob. 11TYU
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- Q1: Why is an insertion or a deletion in a gene more likely to alter the protein product than a substitution, such as A for C, would? Q2: Which would you expect to have more impact on an organism: a point mutation as shown here, or the insertion or deletion of a whole chromosome (discussed in Chapter 8)? Q3: Which mechanisms in a cell prevent mutations?arrow_forwardAssumptions: -There are approximately 3,000,000,000 base paris in the mammalian genome (genes constitute only a portion only a portion of this total. -There are approximately 10,000 genes in the mammalian genome. - A single gene averages 10,000 base pairs in size. -Only 1 out of 3 mutation that occur in gene result in a chnage to the protein structure. In the mammalian genome: How many total base-pairs are in all the mammalian genes? what proportion (%) of the total genome does this represent? What is the probability that a random mutation will occur in any given gene? What is the probability mutation will change the structure of a protein?arrow_forwardSearch for actual mutations that happened to the E. coli bacteria (prokaryotic cells) and where the mutation happened and in which gene. Is the mutated trait recessive or dominant? lastly describe how harmful, or beneficial those mutations were?arrow_forward
- Give 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_forwardCONNECT Why is an understanding of gene regulation in eukaryotes crucial to an understanding of developmental processes? Explain your answerarrow_forwardExplain why genetic maps are useful?arrow_forward
- Bioinformatics: Explore the applications of bioinformatics in genomics research. How do computational methods contribute to understanding genetic variations and their implications for personalized medicine?arrow_forwardWhat is mutation? describe its type and how mutation and evolution are interrelated. Discussarrow_forwardou now have an understanding of Genomes, DNA Replication, Transcription, Translation, and Regulation of Genes. How would you reprogram skin cells to create cells which look and behave like brain cells (neurons)? What would you change/modify to reprogram a skin cell to a neuron? How would you introduce the change/modification into the skin cells to transform them into neurons?arrow_forward
- Question:- 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 genomearrow_forwardDescribe the mechanisms in which DNA is used to generate protein. Reflect on the key points in the process and mention any major differences between the mechanism in prokaryotic and eukaryotic cells. Although the DNA in our genes is considered to be the heritable genetic material, other factors, including the environment are considered to play an important role in the activity and expression of those genes. Summarize the role that epigenetics & developmental epigenetics play in health & disease.arrow_forward. a. If you found a zinc-finger domain (which facilitates DNA binding) in a newly identified gene,what kinds of hypotheses could you make aboutthe gene’s function?b. Suppose that this newly identified gene shares ahigh percentage of similarity throughout its lengthwith a previously characterized gene in the sameorganism. What does this fact suggest about the origin of the two genes? Would you categorize thesegenes as being: (i) homologous, (ii) paralogous, or(iii) orthologous? (More than one answer may apply.)arrow_forward
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