a) Tryptophan-repressor complex binds to operator Gene is switched ON Gene is switched OFF Does NOT affect the gene expression (b) Operator is not bound with the repressor Gene is switched ON Gene is switched OFF Does NOT affect the gene expression

a) Tryptophan-repressor complex binds to operator Gene is switched ON Gene is switched OFF Does NOT affect the gene expression (b) Operator is not bound with the repressor Gene is switched ON Gene is switched OFF Does NOT affect the gene expression

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter10: Control Of Gene Expression

Section: Chapter Questions

Problem 2SQ: Binding or ___ to ___ in DNA can increase the rate of transcription of specific genes. a....

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Question

1. (a) Tryptophan-repressor complex binds to operator

		Gene is switched ON
		Gene is switched OFF
		Does NOT affect the gene expression

(b) Operator is not bound with the repressor

		Gene is switched ON
		Gene is switched OFF
		Does NOT affect the gene expression

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Similar questions

1. (a) Binding of transcription activator protein Gene is switched ON Gene is switched OFF Does NOT affect the gene expression (b) the RNA polymerase binds at the promoter region Gene is switched ON Gene is switched OFF Does NOT affect the gene expression
1. (a) Binding of inducer protein to repressor protein Gene is switched ON Gene is switched OFF Does NOT affect the gene expression (b) Repressor protein binding at DNA upstream Gene is switched ON Gene is switched OFF Does NOT affect the gene expression (c) Operator is not bound with the repressor Gene is switched ON Gene is switched OFF Does NOT affect the gene expression
In the above E. coli cell, with high glucose and low lactose levels, what happens at the operator? low lactose causes activation of a repressor protein, allowing it to detach from the operator low lactose causes inactivation of a repressor protein, allowing it to detach from the operator low lactose causes activation of a repressor protein, allowing it to bind to the operator low lactose causes inactivation of a repressor protein, allowing it to bind to the operator all of the above
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describe the 4 types of suppressors inducer, repressor, promoter, and operator.
What type of control generally involves binding of a repressor protein to a regulatory DNA sequence? (one or two word answer only, please)
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At 2:00 pm, you measured intracellular arginine at 100M. After addition of 200M of arginine to the cell, you, at 2:45 pm, measured intracellular arginine levels to be still at 100M. The most likely explanation is: Arginine bound to the active site of the repressor protein Arginine bound to the allosteric site of RNA polymerase Arginine was in excess in the cell and acted as an inducer Arginine was in excess in the cell and bound to the operator Arginine bound to the allosteric site of the repressor protein
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