The lac operon is usually in the ________ position and is activatedby a/an ________ molecule.a. on, repressor b. off, inducer c. on, inducer d. off, repressor

The lac operon is usually in the position and is activatedby a/an molecule.a. on, repressor b. off, inducer c. on, inducer d. off, repressor

Name: The lac operon is usually in the ________ position and is activatedby
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Description: The lac operon is usually in the ________ position and is activatedby a/an ________ molecule.a. on, repressorb. off, inducerc. on, inducerd. off, repressor

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter10: Control Of Gene Expression

Section: Chapter Questions

Problem 2SA: Binding of _______ to _______ in DNA can increase the rate of transcription of specific genes. a....

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Choose the combination of answers that most accurately completes the statement.The lac operon is usually in the he position and is activated by a/an an molecule. a. on, repressor c. on, inducer b. off, inducer d. off, repressor
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Which of the following statements about gene regulation is false? a. An operon contains DNA sequences that regulates its own expression. b. The operator region can only be bound by an activator protein. c. Transcription factors can affect the binding of RNA polymerase to the promoter. d. A repressor is a transcription factor that hinders gene transcription.
d. give an example of an operon that is under negative control e. repressor f. give an example of a repressor molecule g. activator h. give an example of an activator
What do you call the site of activators that bind to the DNA molecule ? A. enhancer B. operon C. operator D. II E. I
What is an operon? a. A site in the DNA where a regulatory protein binds b. A group of genes under the control of a single promoter c. An mRNA that encodes several genes d. All of the above
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What is an operon ? a. A series of genes controlled by the same operator b. A series of genes on the same mRNA molecule c. A series of genes that all have the same function d. A series of genes all regulated by the same repressor
What is an operon?a. A site in the DNA where a regulatory protein bindsb. A group of genes under the control of a single promoterc. An mRNA that encodes several genesd. All of the above are true of an operon.
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1. (a) Lactose levels are high Lac Operon Genes are switched OFF Lac Operon Genes are switched ON Does NOT affect the gene expression (b) Enhancer and activator proteins are working together Gene is switched ON Gene is switched OFF Does NOT affect the gene expression