BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 15, Problem 4A
In comparing gene expression in prokaryotes and eukaryotes
a. eukaryotic genes can produce more than one protein.
b. prokaryotic genes can produce more than one protein.
c. both produce mRNAs that are colinear with the protein.
d. Both a and c are correct.
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a) Define the term gene expression
b) State 4 difference between prokaryotes and eukaryotes gene expression
c) state the importance of regulating gene expression
What determines which transcription factors will be able to regulate a particular gene's expression?
A. The collection of control element sequences that are associated with that gene
B. The location of that gene sequence (which chromosome it is located on)
C. The sequence of introns present in that gene
D. The sequence of exons present in that gene
..
A mutation occurs in a gene, resulting in it being expressed at the wrong time during development. Where is the mutation most likely to be found?
a) In the transcription start site (TSS)
b) In a TF binding site in the cis-regulatory region
c) In the coding sequence
d) In the 5' UTR
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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- You are curious to identify the region of the gene X sequence that serves as an enhancer for gene expression. Design an experiment to investigate this issue.arrow_forwardWhy is regulating transcription the main way that cells control gene expression? A. Because transcription is the last step in gene expression, stopping here ensures that the cell has a stockpile of proteins to prepare them from all unexpected environmental changes. B. Because transcription involves interactions with DNA, preventing transcription reduces the changes of mutation in the cell’s genome. C. Because transcription is the first step in gene expression, stopping at transcription reduces the amount of energy and resources used by producing unnecessary gene products. D. Because transcription is the shortest step in gene expression, preventing transcription has little effect on the rate of protein production.arrow_forwardWhich of the following is true of transcription factors? A)The same transcription factors are found in all cell types. B)They can increase or decrease gene expression. C)They are a type of cis-acting element. D)They bind only to promoters.arrow_forward
- Compare and contrast regulation of gene expression in prokaryotes vs. eukaryotes.arrow_forwardWhich of the following are possible reasons that a cell would regulate its expression of a gene? (Select all that apply.) (a) an increased need for a particular enzyme (b) a decreased need for a particular enzyme (c) increasing temperature in the external environment (d) changing needs as an organism ages (e) deatharrow_forwardA) List the steps for gene expression in prokaryotes and eukaryotes. B) Relate the differences in gene expression between prokaryotes and eukaryotes in gene expression regulation and explain what causes those differences.arrow_forward
- What is the difference between the core promoter and the regulatory promoter? a. Only the core promoter has consensus sequences. b. The regulatory promoter is farther upstream of the gene. c. General transcription factors bind to the core promoter; transcriptional activator proteins bind to the regulatory promoter. d. Both b and c.arrow_forwardWhat strategy does a genetically encoded calcium indicator look like to allow fluorescence imaging of only one cell type in an acute slice of the brain? A.The use of fluorescent protein expression inhibitors in other cells B.The injection of a recombinant virus causing the death of other cells C.The use of a promoter specific to these cells D.Activation of membrane receptors specific to these cellsarrow_forwardIn Eukaryotes, DNA is a long molecule inside a tiny nucleus. a. How can this long chain fit in such space? b. How does it affect gene expression?arrow_forward
- Give three examples of the importance of consensus sequences to gene expression.arrow_forwardA certain Drosophila protein-encoding gene has one intron. If a large sample of null alleles of this gene is examined, will any of the mutant sites be expecteda. in the exons?b. in the intron?c. in the promoter?d. in the intron–exon boundary?arrow_forwardWhat is the difference between a structural gene and a regulator gene? a. Structural genes are transcribed into mRNA, but regulator genes aren’t. b. Structural genes have complex structures; regulator genes have simple structures. c. Structural genes encode proteins that function in the structure of the cell; regulator genes carry out metabolic reactions. d. Structural genes encode proteins; regulator genes control the transcription of structural genes.arrow_forward
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