BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 15, Problem 4S
There are a number of features that are unique 10 bacteria, and others that are unique to eukaryotes. Could any of these features offer the possibility to control gene expression in a way that is unique to either eukaryotes or bacteria?
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Certain mutations called amber in bacteria and viruses result in premature termination of polypeptide chains during translation. Many amber mutationshave been detected at different points along the gene thatcodes for a head protein in phage T4. How might this system be further investigated to demonstrate and support the concept ofcolinearity?
Create a Venn diagram to compare and contrast the process of gene expression in Bacteria versus eukaryotes. Remember that “gene expression” can include any part of transcription or translation. Try to be as thorough as you can about what aspects of this process are similar between the two taxa, and what characteristics are distinct to only Bacteria or eukaryotes. Plase include a minimum of 15 items in the Venn diagram.
i)Describe attenuation control and how it is used to regulate gene expression.
ii)Give a specific example of how this works?
iii)Could this be used in eukaryotes? why ?or why not?
Chapter 15 Solutions
BIOLOGY
Ch. 15.1 - Prob. 1LOCh. 15.1 - Prob. 2LOCh. 15.1 - List the roles played by RNA in gene expression.Ch. 15.2 - Prob. 1LOCh. 15.2 - Describe the characteristics of the genetic code.Ch. 15.2 - Prob. 3LOCh. 15.3 - Prob. 1LOCh. 15.3 - Differentiate among initiation, elongation, and...Ch. 15.3 - Prob. 3LOCh. 15.4 - Prob. 1LO
Ch. 15.4 - Prob. 2LOCh. 15.4 - Explain the differences between bacterial and...Ch. 15.5 - Prob. 1LOCh. 15.5 - Prob. 2LOCh. 15.5 - Prob. 3LOCh. 15.6 - Explain why the tRNA charging reaction is critical...Ch. 15.6 - Prob. 2LOCh. 15.7 - Prob. 1LOCh. 15.7 - Prob. 2LOCh. 15.7 - Compare translation on the RER and in the...Ch. 15.9 - Prob. 1LOCh. 15.9 - Explain the nature of triplet repeat expansion.Ch. 15.9 - Prob. 3LOCh. 15 - Prob. 1DACh. 15 - Prob. 2DACh. 15 - Prob. 1IQCh. 15 - Prob. 2IQCh. 15 - Prob. 3IQCh. 15 - The experiments with nutritional mutants in...Ch. 15 - What is the central dogma of molecular biology? a....Ch. 15 - In the genetic code, one codon a. consists of...Ch. 15 - Eukaryotic transcription differs from prokaryotic...Ch. 15 - An anticodon would be found on which of the...Ch. 15 - RNA polymerase binds to a ________ to initiate...Ch. 15 - During translation, the codon in mRNA is actually...Ch. 15 - You have mutants that all affect the same...Ch. 15 - The splicing process a. occurs in prokaryotes. b....Ch. 15 - The enzyme that forms peptide bonds is called...Ch. 15 - In comparing gene expression in prokaryotes and...Ch. 15 - The codon CCA could be mutated to produce a. a...Ch. 15 - An inversion will a. necessarily cause a mutant...Ch. 15 - What is the relationship between mutations and...Ch. 15 - Prob. 1SCh. 15 - Frameshift mutations often result in truncated...Ch. 15 - Describe how each of the following mutations will...Ch. 15 - There are a number of features that are unique 10...
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- Almost all cells within an animal contain DNA with the same sequence, yet different cells can have very different properties and gene expression patterns. What are the primary mechanisms that facilitate the existence of distinct cell types in eukaryotes?arrow_forwardThe expression of genes in bacterial cells can be regulated on different levels in the production of the resulting protein.(a) Name the different levels of gene regulation in prokaryotes. (b) Discuss the different mechanisms used in each of these levels.arrow_forwardThe following is a difference between eukaryotic and prokaryotic gene regulation: O Only prokaryotes have operons O Only eukaryotes can regulate genes by altering chromatin structure O Only prokaryotes can have coordinated expression of several genes O Only eukaryotes have proteins that act as activators of transcriptionarrow_forward
- how would alterning patterns of gene expression in prokaryotes would most likely serve an organism's survival? In a single point mutation, when the RNA and amino acid changes it is called ? what is the DNA sequence called?: 3”TTC ATT TAC TTT CGT TCA TAT TGT ACG ACT CGG TTA5”arrow_forwardWhy is it easier to identify spontaneous mutations in bacteria than in most eukaryotes? The mutations occur at a much higher frequency. Because bacteria have smaller genomes. The mutations can be induced via exposure to the bacteriophage. The mutations are expressed directly in descendant cells because bacteria are haploid. The mutations are visible as color changes within a bacterial colony.arrow_forwardProvide a detailed description of gene expression and control in prokaryotes. Provide a detailed description of proteins critical for this process. (please hand draw a figure showing gene expression and control in prokaryotes and the proteins involved)arrow_forward
- Genetic 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_forwardYou and your fellow researchers want to make bacteria glow using a eukaryotic gene that results in bioluminescence. What factors should you consider when attempting to express eukaryotic genes in prokaryotic cells before designing your experiment?arrow_forwardBased on the images attached, what does the similarity in the sequences tell you about the ermB gene found in these bacteria? Would we expect high or low sequence similarity when considering the possibility of horizontal gene transfer?arrow_forward
- Some bacteria might be able to respond to environmental stress by increasing the rate at which mutations occur during cell division. How might this be accomplished? Do you think there would be an evolutionary advantage of this ability? Explain.arrow_forwardWhich of the following statements about the attempt to express a eukaryotic gene in bacteria is TRUE? Choose an answer below: The eukaryotic promoter will function in the bacterial cells. The transcript will be capped. Expression of the gene will always yield a functional protein. The stop codon of the eukaryotic gene will function in the bacterial cells. The transcript will be spliced the same way as in eukaryotic cells.arrow_forwardHow can the same modification of the standard genetic code happen in two organelle genomes (chloroplasts and mitochondria) and in the same organism?arrow_forward
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