BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 16.3, Problem 1LO
Summary Introduction
To determine: The differences between control by induction and control by repression.
Introduction: Protein synthesis is regulated by the genetic material of the cell and the external chemical environment. DNA possesses thousands of genes responsible for the synthesis of a specific type of numerous protein molecules.
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Compare and contrast regulation by a repressor and an activator.
A gene in liver cells is "off". In the presence of a toxin, a repressor is removed and the gene is transcribed at low levels. How would you describe this regulation?
A. Positive induction
B. Negative induction
C. Positive repression
D. Negative repression
Promoters aid in initiating _____________.
Chapter 16 Solutions
BIOLOGY
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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- Describe the function of activators and repressors.arrow_forwardThe required association of two α-globin molecules and two β-globin molecules to make a functionally active hemoglobin molecule is an example of translational control. post-transcriptional control. post-translational control. chromatin control. transcriptional control.arrow_forwardThe production of antibodies is an example of regulation of gene expression at which level? Translational Level Genomic Level Transciptional Level Post-Transcriptional Levelarrow_forward
- The process in which the two-dimensional structure of RNA from the L region of an operon can either prevent or allow transcription of the structural genes is called _____________. Group of answer choices Activation Co-repression Induction Attenuation Repressionarrow_forwarddescribe the 4 types of suppressors inducer, repressor, promoter, and operator.arrow_forwardINDICATE WHETHER THE STATEMENT IS TRUE OR FALSE 1. Pelle is an inhibitory protein. 2. Tube is an activating protein.3. Dorsal is a transcription factor.4. Dorsal promotes dorsalization of the cell.arrow_forward
- Describe the effector system (the cell-killing mechanism) usedby Tc cells.arrow_forwardWhich describes an enzymatic activity/biochemical function of importin-beta? facilitate release of nuclear proteins after transport through the nuclear pore complex interact with/bind to nuclear localization sequences INLSs) interact with/bind to importin-alpha hydrolyze GTP to GDP + Piarrow_forwardExplain the single operator site that is most important for repression.arrow_forward
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