Answered: In the presence of lactose and the…

Name: In the presence of lactose and the presence of glucose the lac operon
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Description: In the presence of lactose and the presence of glucose the lac operon isnot expressedLacl isboundto the operator and CAP isnot boundto the CAP binding site.

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Biology

In the presence of lactose and the presence of glucose the lac operon is not expressed Lacl is bound to the operator and CAP is not bound to the CAP binding site.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter14: Gene Regulation

Section: Chapter Questions

Problem 9TYU: A mutation that inactivates the repressor gene of the lac operon results in (a) the continuous...

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A mutation that inactivates the repressor gene of the lac operon results in (a) the continuous transcription of the structural genes (b) no transcription of the structural genes (c) the binding of the repressor to the operator (d) no production of RNA polymerase (e) no difference in the rate of transcription
Select all of the cis-acting regulatory elements of the lac operon. Operator CAP+cAMP CAP+cAMP binding site LacZ
Compare and contrast the functional mechanism of the Inducible - Lac operon with the Repressible - Tryp operon.
"The highest level of transcription of the E. coli lac operon occurs when CAP (+cAMP) is bound to the CAP site and LacI is not bound to the operator." The preceding statement is... True or False?
Describe the regulation of the lac operon when lactose is present and glucose is present Your Response must include the following terms, cAMP, inactive CAP, active CAP promoter, operator, RNA polymerase, CAP binding site
A mutation prevents the catabolite activator protein (CAP) from binding to the promoter in the lac operon. What will the effect of this mutation be on the transcription of the operon?
If glucose is absent, but lactose is available, the lac operon will be _______
If CAP is bound to the Promoter of the Lac Operon and the repressor protein is not bound to the operator, which of the following is true: a.Glucose Levels are low & Lactose is absent b.Glucose is absent & Lactose is present c.cAMP is low & Lactose is Absent d.Glucose and Lactose are Present e.cAMP is low & Lactose is present
Which of the following condition(s) is optimal for expression of the lac operon? I. low glucose and formation of CAP-cAMP complex II. high glucose resulting in no cAMP III. no lactose present and a functional repressor IV. presence of lactose binding to a functional repressor
Transcription of structural genes in an inducible operon ______. A) starts when the pathway’s substrate is present B) occurs continuously in the cell C) starts when the pathway’s product is present
Describe the binding of RNA polymerase, repressors, andactivators to the lac operon when both lactose and glucose are scarce. What is the effect of these scarcities ontranscription of the lac operon?
Which of the following molecules is an inducer of the lac operon:a. Galactose d. Isothiocyanateb. Glucose e. cAMPc. Allolactose f. Lactose