Connect With Learnsmart Labs Access Card For Biology: Concepts And Investigations
4th Edition
ISBN: 9781259870002
Author: Mariëlle Hoefnagels Dr.
Publisher: McGraw-Hill Education
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Question
Chapter 7.6, Problem 2MC
Summary Introduction
To determine:
How repressor protein does helps to regulate bacterial operon.
Concept introduction:
Operon is a functional unit of DNA that contains clusters of gene and all the genes are controlled by single promoter. Lac operon is a type of operon which is responsible for the transportation and
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• How does a repressor inhibit the synthesis of a specific mRNA?
What are the major differences between a repressor protein anda riboswitch in the control of gene expression?
How is glucose involved in positive control of the lac operon?
Chapter 7 Solutions
Connect With Learnsmart Labs Access Card For Biology: Concepts And Investigations
Ch. 7.1 - How did Griffiths research, coupled with the work...Ch. 7.1 - How did the Hershey-Chase blender experiments...Ch. 7.2 - What are the components of DNA and its...Ch. 7.2 - What evidence enabled Watson and Crick to decipher...Ch. 7.2 - Prob. 3MCCh. 7.3 - What is the relationship between a gene and a...Ch. 7.3 - Prob. 2MCCh. 7.3 - What are the three types of RNA, and how does each...Ch. 7.4 - What happens during each stage of transcription?Ch. 7.4 - Where in the cell does transcription occur?
Ch. 7.4 - What is the role of RNA polymerase in...Ch. 7.4 - What are the roles of the promoter and terminator...Ch. 7.4 - How is mRNA modified before it leaves the nucleus...Ch. 7.5 - How did researchers determine that the genetic...Ch. 7.5 - What happens in each stage of translation?Ch. 7.5 - Where in the cell does translation occur?Ch. 7.5 - How are polypeptides modified after translation?Ch. 7.6 - What are some reasons that cells regulate gene...Ch. 7.6 - Prob. 2MCCh. 7.6 - Prob. 3MCCh. 7.6 - Prob. 4MCCh. 7.7 - What is a mutation?Ch. 7.7 - What are the types of mutations, and how does each...Ch. 7.7 - Prob. 3MCCh. 7.7 - Prob. 4MCCh. 7.7 - How are mutations important?Ch. 7.8 - What question about the FOXP2 gene were the...Ch. 7.8 - What insights could scientists gain by...Ch. 7 - A nucleotide is composed of all of the following...Ch. 7 - Prob. 2MCQCh. 7 - Transcription copies a _______ to a complementary...Ch. 7 - Choose the DNA sequence from which this mRNA...Ch. 7 - Prob. 5MCQCh. 7 - Prob. 6MCQCh. 7 - How does the lac operon regulate lactose digestion...Ch. 7 - Prob. 8MCQCh. 7 - Prob. 9MCQCh. 7 - Prob. 10MCQCh. 7 - Explain how Griffiths experiment and Avery,...Ch. 7 - Prob. 2WIOCh. 7 - Prob. 3WIOCh. 7 - Put the following in order from smallest to...Ch. 7 - Prob. 5WIOCh. 7 - List the three major types of RNA and their...Ch. 7 - Some people compare DNA to a blueprint stored in...Ch. 7 - Prob. 8WIOCh. 7 - Prob. 9WIOCh. 7 - If a protein is 1259 amino acids long, what is the...Ch. 7 - The amount of melanin in the skin is controlled by...Ch. 7 - The roundworm C. elegans has 556 cells when it...Ch. 7 - Refer to the figure to answer these questions: a....Ch. 7 - A protein-encoding region of a gene has the...Ch. 7 - Explain how a mutation in a protein-encoding gene,...Ch. 7 - Describe the mutation shown in figure 7.27 and...Ch. 7 - Parkinson disease causes rigidity, tremors, and...Ch. 7 - Prob. 18WIOCh. 7 - Refer to figure 7.28 and the chapter con tent to...Ch. 7 - Prob. 2PITCh. 7 - Prob. 3PITCh. 7 - Prob. 4PIT
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- What is the difference between inducible and repressible operons?arrow_forwardWhat led researchers to conclude that a repressor moleculeregulates the lac operon?arrow_forwardIf you add a co-eepressor to a repressor protein and that allows it to bind the operator is this a inducible, constitutive or repressible operon?arrow_forward
- What is the role of a substrate that controls a repressible operon? a. increase the production of inactive repressor proteins b. bind to the repressor protein and activate it c. bind to the repressor protein and deactivate it d. bind to the promoter region and decrease the affinity of RNA polymerase for the promoterarrow_forwardWhat is an operon? How does it work?arrow_forwardWhat is an enhancer? What do these sequences contain bound to it? Do enhancers have to be near promoters?arrow_forward
- If an abnormal repressor protein could still bind allolactose but the binding of allolactose did not alter the conformation of the repressor protein, how would the expression of the lac operon be affected?arrow_forwardWhat is the difference between positive regulation of the lac operon and negative regulation of the lac operon?arrow_forwardWhen is it appropriate to use inducible operons? When is it appropriate to use repressible operons?arrow_forward
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