Part A If E. coli bacteria are placed in an environment that contains both glucose and lactose, the regulation of the lac operon will allow which nutrient to be processed first? ONether will be processed in this environment O Both will be processed at the same time. Glucose O Not enough is known about the regulation of the lac operon to know which nutrient will be processed first Lactose Submit Request Answer

Part A If E. coli bacteria are placed in an environment that contains both glucose and lactose, the regulation of the lac operon will allow which nutrient to be processed first? ONether will be processed in this environment O Both will be processed at the same time. Glucose O Not enough is known about the regulation of the lac operon to know which nutrient will be processed first Lactose Submit Request Answer

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

14th Edition

ISBN:9781305073951

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

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Metabolic control is crucial part of survival for all bacteria. The lactose operon is located on the bacteria chromosome and assists in maintaining homeostasis. (l) Describe how an operon regulates the expression of genes. (m) Feedback plays an important part in life helping to maintain homeostasis. Explain how both negative and positive feedback help maintain homeostasis
An E. coli cell as the following genotype for the lac operon system: I- OC Z+ / F’ I+. Which term best describes the regulation of expression of the beta galactosidase in this cell? Group of answer choices Inducible None of these Activated Always repressed Constitutive
. In an effort to determine the location of an operator sitefor a negatively regulated gene, you have made a seriesof deletions within the regulatory region. The extent ofeach deletion is shown by the line underneath the sequence, and the resulting expression from the operon(i = inducible; c = constitutive; − = no expression) isalso indicated.... GGAT C T T AGCCGGCTAACATGATAAATATAA......C C T AGAATCGGCCGA TTGTA C T A TTT ATAT T ...1 i2 –3 c4 –5 ca. What can you conclude from these data about thelocation of the operator site?b. Why do you think deletions 2 and 4 show no expression of the gene?
40The accepted term for the functional investigation of a gene that starts with the gene sequence rather than a mutant phenotype is forward genetics. Yesorno 41Alu elements in the human genomes are examples of SINE elements. Yesorno 42The lac operon has three lac operators. Yesorno
When an individual drink's a product with lactose (e.g., whole milk), what happens to the repressor system of the lac operon? The lac repressor is inactivated Transcription of the lac operon genes into a single mRNA β-galactosidase and lac permease are synthesized Lactose is rapidly metabolized by enzymes
Describe the main functional differences between the TRP and the Lac operons. Main functional differences DO NOT refer to the fact that one operon involves TRP and the other involves Lac. They also don’t include that there are different genes found in the TRP operon compared to the Lac operon or that the repressor in the Lac operon is called Lac l. Also DO NOT simply list how both operons work to answer this question.
Tryptophan (Trp) attenuation is an extra mechanism of regulation of trp operon when trp level is too high. Attenuation causes premature transcription termination. c) Review the region that is responsible for trp attenuation during low trp level.
Orca is a new type of E. Coli bacterium. Suppa is a nutrient that Orca needs to survive. Suppa can be synthesized by four (4) enzymes (SupA, SupB, SubC, and SupD) in its cell or it can acquire it from its environment. It only synthesizes it's own Suppa when it's really desperate, because there's none around! Draw and describe Orca's operon controlling its synthesis of Suppa.
Create a metabolism cocept map using these terms RepressorInducer RiboswitchRepression InductionPositive regulationActivatorOperator Heat shocklac operontrp operon Catabolite RepressionHeat shocksigma-32 Negative regulationTwo-component regulationSensor Kinase Autoinducing Peptide (AIP)Response regulatorSigma factorsFeedback inhibitionProtein StabilityQuorum SensingRNA regulationAntisense RNAHomoserine Lactone (AHL)
F’ lac I- O+ Z+/ lac I+ Oc Z- the genotype indicated would lead to what type of expression of β‐galactosidase with respect to lactose inducibility of the lac operon. A. Constitutive B. Cannot be determined C. Inducible D. Uninducible
Explain how the Lac operon functions when there are low glucose levels and high lactose levels. Be sure to address the regulatory and structural gene region of the operon and how each of the following function: CAP, cAMP, RNA polymerase and the repressor protein.
Please help me iwht this question explain how the regulation of the Lac Operon incorporate both negative and positive regulation?