Solved Gene expression from the lac operon can be controlled
There may be more than one correct answer; select all that apply. mutation of the-10 promoter sequence to more closely resemble the E. coli consensus sequence mutation that deletes the lac, gene mutation that increases the affinity of the operator regions for lactose repressor mutation that reduces the affinity of the lactose repressor for ...
Solved Determine the lac operon genes level of expression
There will be constitutive synthesis of the lac operon due to this mutation. The lac operon will be off because there is low lactose in the media. The phenotype will be similar to an operator constitutive mutation. Determine the lac operon genes level of expression, given the following media characteristics and mutations. Select all of the true ...
Solved I The Lac Operon Activity . For the lac operon - Chegg
I The Lac Operon Activity . For the lac operon wild-type and mutant strains below, in the presence or absence of lactose, please do identify where transcription occurs by drawing arrows signifying transcription of the regulator gene the operon → indicate the following resulting proteins Gre repressor, -galactosidase (product of lacz).
Solved Compare and contrast regulation of the LAC Operon - Chegg
In both cases, the active repressor binds to the operator and prevents transcription of the operon. In the lac operon, the repressor is inactivated by allolactose, an isomer of lactose that functions as an inducer. Allolactose is only made when lact …View the full answer
Solved BIO 3321L GENETICS LAB #6: Understanding the lac - Chegg
While regulation of the lac operon also depends on the concentrations of glucose and cyclic-AMP, this aspect of regulation is left unexplored in this exercise. In the simulation we will be using today, you will get a visual demonstration of how the very presence or absence of lactose itself controls the cell's ability to digest the lactose.
Solved 1. In the lac operon, what are the likely effects on - Chegg
To understand the effect of different mutations on the operon gene transcription in the lac operon, start by gaining a clear conception of what an operon is; an operon is essentially a unit of gene expression in prokaryotic cells that includes a set of genes that are transcribed together, along with regulatory elements such as promoters and ...
Solved Lac permease in bacteria is a membrane protein - Chegg
Lac permease in bacteria is a membrane protein required to transport lactose into the cytoplasm of bacteria. It is encoded by the lacY gene. Certain lacY mutations render the protein completely unable to transport lactose. In these mutants, what will be the transcriptional state of the lac operon? Multiple Choice The lac operon will be ...
Solved The lac operon - TRUE or FALSE: Group of answer - Chegg
The lac operon - TRUE or FALSE: Group of answer choices The CAP protein enables cAMP levels to modulate transcription of the lac operon. True or False When the lac repressor is attached, RNA polymerase is unable to transcribe the genes of the lac operon.
Solved The lac operon in E. coli controls the gene | Chegg.com
The lac operon in E. coli controls the gene expression of the enzymes that digest lactose in the cell. In the absence of lactose,the lac operon will turn off and gene expression will be inactivated.Place the events of gene regulation by the lac operon in order of their occurrence, from the removal of lactose from theenvironment to when the ...
Gene Regulation: Lac Operon: - Chegg
What is the function of cAMP in regulation of the lac operon? 1. activates a repressor protein 2. activates an activator protein 3. inactivates a repressor protein 4. inactivates an activator protein Consider a bacterial strain that has a mutant lac repressor that cannot bind the lac operator region. This strain likely 1. synthesizes lactose. 2.