1 SEM ACC W/RAVEN CARDED
12th Edition
ISBN: 9781265486297
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 16, Problem 4S
The number and type of proteins found in a cell can be influenced by genetic mutation and regulation of gene expression. Discuss how these two processes differ.
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Choose the statement that correctly characterizes regulated and/or constitutive gene expression.
Regulated expression refers to gene expression that is either on or off, depending on the physiological or metabolic status of the cell.
Constitutive expression refers to gene expression that is either on or off, depending on the physiological or metabolic status of the cell.
Constitutive expression refers to gene expression that is always repressed in response to the absence of required nutrients or other metabolic molecules.
Regulated expression refers to gene expression that is always on, regardless of the metabolic or physiological conditions in the cell.
Regulated and constitutive expression are terms used to describe gene expression in prokaryotes only.
Describe missense and nonsense mutations and how they are different from frameshift mutations. Be comprehensive and tailor your answer to explain the impact of these mutations on the protein expressed
Discuss the role of chromatin proteins in regulating gene expression. How does the three-dimensional structure of the chromatin affect genetic regulation? How do hormones influence genetic regulation?
Chapter 16 Solutions
1 SEM ACC W/RAVEN CARDED
Ch. 16.1 - Prob. 1LOCh. 16.1 - Prob. 2LOCh. 16.1 - Prob. 3LOCh. 16.2 - Explain how proteins can interact with base-pairs...Ch. 16.2 - Prob. 2LOCh. 16.3 - Prob. 1LOCh. 16.3 - Prob. 2LOCh. 16.3 - Explain control of gene expression in the trp...Ch. 16.4 - Prob. 1LOCh. 16.4 - Prob. 2LO
Ch. 16.4 - Prob. 3LOCh. 16.5 - Describe at least two kinds of epigenetic mark.Ch. 16.5 - Explain the function of chromatin-remodeling...Ch. 16.6 - Prob. 1LOCh. 16.6 - Prob. 2LOCh. 16.7 - Prob. 1LOCh. 16.7 - Prob. 2LOCh. 16 - Prob. 1DACh. 16 - What advantage might a bacterium gain by linking...Ch. 16 - Prob. 2IQCh. 16 - Prob. 3IQCh. 16 - In prokaryotes, control of gene expression usually...Ch. 16 - Prob. 2UCh. 16 - Prob. 3UCh. 16 - The lac operon is controlled by two main proteins....Ch. 16 - In eukaryotes, binding of RNA polymerase to a...Ch. 16 - In eukaryotes, the regulation of gene expression...Ch. 16 - In the trp operon, the repressor binds to DNA a....Ch. 16 - Prob. 1ACh. 16 - Specific transcription factors in eukaryotes...Ch. 16 - Repression in the trp operon and induction in the...Ch. 16 - Regulation by small RNAs and alternative splicing...Ch. 16 - Eukaryotic mRNAs differ from prokaryotic mRNAs in...Ch. 16 - In the cell cycle, cyclin proteins are produced in...Ch. 16 - A mechanism of control in E. coli not discussed in...Ch. 16 - You have isolated a series of mutants affecting...Ch. 16 - Examples of positive and negative control of...Ch. 16 - What forms of eukaryotic control of gene...Ch. 16 - The number and type of proteins found in a cell...
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- Genetic expression in general can be regulated at various stages. Identify specific processes that control gene expression at the: a. transcription level - b. post-transcription level - c. translation level -arrow_forwardIdentify and list the functions of the three general classes of proteins that control cell death.arrow_forwardDescribe the function and significance of ubiquitin and the proteasome in the regulation of gene expression.arrow_forward
- DNA and RNA are information molecules with different roles in gene expression. List three differences between these two types of molecules.arrow_forwardDiscuss the relationship between genes and phenotype in terms of gene expression and the symptoms caused by mutations in genesarrow_forwardThe most common type of regulation of gene expression occurs at the level of transcription. Name other types of gene regulation for gene expression in eukaryotic cells. Name types of gene regulation unique to eukaryotic cells versus prokaryotic cells.arrow_forward
- Which of the following is NOT a reason cells regulate gene expression at a level other than the transcriptional level? Some proteins are only required in part of the cell and transcriptional control will only regulate the mRNA/protein throughout the cell. The core promoter for many genes is the same, so these genes will always be transcribed in the same cells. Differential gene expression in different cell types requires regulation of gene expression at levels other than transcription. Transcription and translation are realtively slow processes, so cells need to regulate gene expression post-transcriptionally if they require a fast change in expression of a gene. Not all cells are transcriptionally active (meaning they do not transcribe any genes), so these cells need to regulate gene expression post-transcriptionally.arrow_forwardList and discuss four different mechanisms by which vitamins A and D regulate gene expression.arrow_forwardExplain why cells need to control gene expression.arrow_forward
- Given the following schematic for a gene and its associated regulatory regions, answer the following questions by placing the correct letter in the provided blanks please put in the correct letter for the questions What region would provide cell type-specific expression of genes? region What site would significantly increase gene expression rates? = region What region or regions of this gene’s coding sequence are expressed as amino acids = regionarrow_forwardDescribe the roles of RNA molecules in gene expression.arrow_forwardIn many genetic disorders, a lysosomal enzyme required to degrade a specific molecule is missing or defective. One example of these maladies, often referred to as lysosomal storage diseases, is Tay-Sachs disease. Afflicted individuals inherit a defective gene from each parent that codes for an enzyme that degrades a complex lipid molecule. Symptoms include severe mental retardation and death before the age of 5 years. What is the nature of the process that is destroying the patient's cells? (Hint: Synthesis of the lipid molecule continues at a normal rate.)arrow_forward
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