Phet gene machine lactose transport answers The Lac Operon Modeling Lab. Go to the Phet website for the Gene Gene Machine: The Lac Operon. Now click on the Lactose Transport tab. Zarea Miller March 3, 2021 Prokaryotic Gene Regulation PhET Simulation of Operon Function The purpose of this activity is to develop an understanding for how prokaryotes control gene expression. Why is this a problem for the E. What happens to the lacY protein? What is the role of the lacY protein? The lacY protein attaches to the cell membrane. Coral Reef Senior High School. Gene Machine: Lac Operon -an inquiry lesson: Trish Loeblein: UG-Intro: Lab HW CQs: Biology: lac Operon Simulation Guided: Biology: Operon Modeling 2. Add 20-25 lactose molecules. What happens when the lactose is removed from the environment? 9. How do PhET Click on the “Lactose Transport” tab on the top of the simulation. Log in Join. Step 1: Drag the /ac promoter to the stretch The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Click the Lactose Transport Tab (light blue) Google “phet gene machine”. The lacZ gene encodes b-galactosidase, a key enzyme in lactose metabolism. AIDAN LAM - 04. Step 7: Do not add any more lactose and watch what transpires. O AIDAN LAM - Gene Machine: Lac Operon -an inquiry lesson: Level Undergrad - Intro: Type Concept Questions, Homework, Lab: Answers Included No: Language English: Keywords Bacteria, Cellular Metabolism, Gene Regulation, cells, inquiry, lactose, phet: Simulation(s) Gene Machine: The Lac Operon: Author(s) Trish Loeblein: Contact Email patricia. The two resulting monosaccharides can be used as an energy source for cellular respiration or fermentation. The model was based on their study of the genes in E. phet. Total views 8. O The Lac Operon Modeling Lab. Google . Earth Science. Again, this is for The PhET project at the University of Colorado creates "fun, interactive, research-based simulations of physical phenomena. Name: _ Created by D. Google "phet gene machine". University of Missouri, Columbia. Topics Gene Regulation Genes Cellular Metabolism Cells Description Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Click the “show legend” box in the Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. " This particular one deals with the lac operon. DNA. Name: Tyler Fezza Simulating how Gene Expression works 1. You can turn on the legend Part 1 - Simulating Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Step 1: Drag the /ac promoter to the stretch of DNA. It will show you a cell membrane, RNA polymerase and more genes on the Lac Operon, both Lac Z and Lac Y. Specifically, this activity will simulate an inducible operon W hat is the INITIAL result of adding lactose when both genes are activated? Step 7: Do not add any more lactose and watch what transpires. Place all the genes, the two promoters, and the operator icons in their place to show their locations on the E coli’s DNA. Skip to Main Content Created 8/25/19. Genes in an operon are transcribed as a group and have a single promoter. pdf - Name: Tyler Fezza Simulating Pages 3. There is also an The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. There is also an incomplete DNA gene beneath them. The lac operon is a set of genes which are responsible for the production of proteins (enzymes) important for regulating the import and utilization metabolism of lactose by some bacterial cells, for example E. The lacZ gene which codes for a protein Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Notice the lac operon consists of two genes, the lacZ and the lacY gene. Add some lactose and watch to see what Click on the “Lactose Transport” tab on the top of the simulation. 02:17 lacA encodes for β Google “phet gene machine”. BSC 2010. Specifically, this activity will simulate an inducible operon called Click the link to access phet’s gene machine-lac operon. We recommend using the latest version of Chrome, Firefox, Safari, or Edge. Biology. colorado. pdf from BSC 1010 at Broward College. Total views 3. Part 1 - Simulating how Gene Expression works. Add some lactose and watch to see what transpires. (d) Observe what happens. Mutation Immediate Effect Effect on Operon lacL Gene (always OFF) lacI is not produced so nothing ever binds to the lac operator The regulatory gene is never turned on, therefore, no repressors are made so the operon can transcribe lacZ and lacY continuously breaking down lactose. PK !ç! ]p × [Content_Types]. coli cell? Drag the lac operator to the appropriate location on the stretch of DNA. docx. You now have a cell membrane which separates the inside and outside of the cell. Explore the effects of mutations within the lac operon by adding or removing genes from the DNA. CUNY Borough of Manhattan Community College. coli. BSC 2010 lac operon WS. 7. edu. 999+ Documents. The lactose permease protein would transport lactose into the cell, where the lac enzyme would metabolize lactose into glucose and galactose. coli chromosome that includes: A promoter which is a sequence of DNA that helps the RNA polymerase to recognize a gene. THIS SIMULATION WILL NOT WORK ON IPAD https: When lactose is inside the cell, the cell expresses lacZ protein, which metabolizes the lactose. Explain the role of the LacY protein. Lac Operon PhET Simulation Answer the following questions in complete sentences and a d LAC1. There is also an incomplete DNA The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. You can turn on the legend in the lower right and that will help you identify the View Notes - lac_operon_pHet from BIO 2262 at Dougherty Valley High. Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. On the screen you should see two floating blue molecules, these Explore the simulation and address each of the following with evidence: Predict the effects on lactose metabolism when the various genes and DNA control elements are mutated (added or removed). 04) Name: ___ Lindsay Llerena _____ Lactose is a disaccharide sugar that can be broken down by prokaryotic cells using an enzyme called LacZ. What is the INITIAL result of adding lactose when both genes are activated? Step 7: Do not add any more lactose and watch what transpires. Click the Lactose Transport tab at the top of the page. On the screen you should see two floating blue molecules, Click on the “Lactose Transport” tab on the top of the simulation. How could you re-activate the lacZ gene? Step 8: Now try the lactose transport tab and insert all of the promoters and genes. How do these two genes (lacZ and lacY) back to back work to control the intake and hydrolysis of lactose?The lacY gene produces the protein that transports lactose through the cell membrane and inside the cell. What is the difference between a'smart' and a'smart'? On the screen you should see two floating Gene Machine: The Lac Operon Sim Description: Build a gene network! The lac operon is a set of genes which are responsible for the The RNA is scripted and it forms the lactose transport gene Step 3: Inject some lactose (about 25 Express yourself through your genes! See if you can generate and collect three types of protein, then move on to explore the factors that affect protein synthesis in a cell. lacL Gene (always ON) lacI creates mRNA strand which translates Google “phet gene machine”. Specifically, this activity will simulate an inducible operon called the lac operon used to control the expression of genes that control lactose levels in bacteria. Wilson High School. Explain. tyfezza. Skip to Main Content Created 3/25/18. LaFleur Name: _____ Lac Operon AP Biology PhET Simulation The goal of this simulation is to help you understand how prokaryotes (note that this is for prokaryotes and NOT eukaryotes) control gene expression. The inclusion of the lacY gene in the lactose transport system helps to ensure the efficient utilization of lactose as a source of energy for the prokaryote. Name The Lac Operon Modeling Lab The Lac Operon simulation will provide you with a realistic interactive model of the bacterial lac operon. o. The structural gene lacY (note: this is under the tab entitled “Lactose Transport”) which codes for lactose permease enzyme Lactose Regulation 1. pdf from SCIENCE 3529 at West Ranch High. What is the INITIAL result of adding lactose when both genes are activated? The lactose sits in the area, unaffected. Name/Class Period: Shuyi Han Part 1 - Simulating how Gene Expression works Go to the following link for Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. North Carolina A&T State University. Describe the the function of RNA polymerase. coli that code for . The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Now click on the tab: Lactose Transport on the top left. Part 1 - Simulating How Gene Expression Works Click on the R ESPONSE Q UESTIONS FOR P H ET S IMULATIONS W EEK 3: Introduction: In these experiments, you will be studying gene regulation, gene transcription, and translation (protein synthesis) as discussed in Chapter 5 of Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Again, this is for bacteria only and Google “phet gene machine”. Simulations. Skip to Main Content Over 110 million simulations delivered. Fossil Ridge High School. The lacY gene encodes a permease that functions as a membrane-spanning transport protein to bring lactose into the cell. Lac Operon PhET Simulation 1 pHET Interactive Simulations - Gene machine: Lactose Transport The simulation environment has become more complicated now. Add the lac promoter, lac operator, lacZgene and lacYgene to your simulation. Once you have completed the worksheet, open the &quot;Assignment #3 – Gene Expression At the top of the simulator, select the tab that says "Lactose Transport" This introduces an additional component of the lac operon, the lacY gene. Click the “show legend” 8. Study Resources. The lac operon is a region of DNA on the E. 5 Lac Operon Simulation（副本）. Open the f Lac operon - Guided Exploration - Blank. Books; Discovery. The PhET project at the University of Colorado creates "fun, interactive, research-based simulations of physical phenomena. Discipline: Biology: All of PhET simulations are extensively tested and evaluated: Case studies: PhET Research View pHET- lac operon - Guided Exploration - SPRING 2023. Prokaryotic Gene Regulation PhET Simulation of Operon Function The purpose of this activity is to develop an understanding for how prokaryotes control gene expression. shop › Evolution-worksheet-answersA Catastrophic, Widespread, Often Global Event In Which Major (Answer Key) University University of Pittsburgh Course Foundations Of Biology 2 ( BIOSC 0160) Academic year 2022/2023 Bio 2 final exam- only stuff i dont know from lectures Bio 2 quiz 1 study guide Gene Expression Week 8 Worksheet Answer Key Hardy W Lac Operon AP Biology PhET Simulation The goal of this simulation is to help you understand how prokaryotes (note that this is for prokaryotes and NOT eukaryotes) control gene expression. Skip to Main Content . Prokaryotic Gene Regulation. 2. 8. On the screen you should see two floating blue molecules, these are RNA polymerase. Lactose is a disaccharide sugar that can be broken down by prokaryotic cells using an enzyme called LacZ. Lactose Transport screen has Cell Membrane and LacY gene. BIOL 102. b. An operator, which is a DNA sequence to which a repressor protein produced by a special regulatory gene (the lacI gene) can bind to shut off the operon. edu: Google “phet gene machine”. 4. Now that lacY is letting lactose into the cell, we can see the function of lacZ. SCI 223Week 1 Response Questions for PhET Created by D. Lac operon - Guided Exploration - Blank. Florida State University. Why is this page out of focus? Because this is a Premium document. Pettit BIO1140 Winter 2021. Gene Machine: Lac Operon -an inquiry lesson: Level Undergrad - Intro: Type Concept Questions, Homework, Lab: Answers Included No: Language English: Keywords Bacteria, Cellular Metabolism, Gene Regulation, cells, inquiry, lactose, phet: Simulation(s) Gene Machine: The Lac Operon: Author(s) Trish Loeblein: Contact Email patricia. BIOLOGY Honors Bio. The purpose of this activity is to develop an understanding for how prokaryotes control gene expression. Part 1 - Simulating how Gene Expression works 1. Describe the result and explain why this occurs. Part 2: Lactose Transport The simulation environment has become more complicated now. Click the “show legend” R ESPONSE Q UESTIONS FOR P H ET S IMULATIONS G ENERAL I NSTRUCTIONS : Suggested browser: Google Chrome Click the links below to open each simulator. Explore the lac operon gene regulation and metabolism of lactose in bacterial cells through interactive simulation. Wait a few seconds, then describe what happens. Click on the "Lactose Transport" tab on the top of the simulation. 00:16 To follow this tutorial, learner should be familiar with topics in high-school biology. Click the “show legend” box in the Lac Operon AP Biology PhET Simulation The goal of this simulation is to help you understand how prokaryotes (note that this is for prokaryotes and NOT eukaryotes) control gene expression. Download & run the Gene Machine. Part IV. a. edu: The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Gene Machine: The Lac Operon (1. pdf. A Grossly B No C Entirely D Somewhat Answer Key B Feedback B p 338 Question 10. Physics. You can turn on the legend in the lower right and that will help you identify the molecules. Use evidence to defend their ideas. Gene Machine: Lac Operon -an inquiry lesson: Trish Loeblein: UG-Intro: CQs HW Lab: lac Operon Simulation: Chris Justus: HS: CQs: Alignment of PhET sims with NGSS: The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. How could you re-activate the lacZ gene? Step Gene Machine: Lac Operon -an inquiry lesson: Level Undergrad - Intro: Type Concept Questions, Homework, Lab: Answers Included No: Language English: Keywords Bacteria, Cellular Metabolism, Gene Regulation, cells, inquiry, lactose, phet: Simulation(s) Gene Machine: The Lac Operon: Author(s) Trish Loeblein: School / Organization PhET: Date submitted Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. edu: Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Each operon contains regulatory DNA sequences, which act as binding sites for regulatory proteins that promote or inhibit transcription. The LacZ gene produces a purple circle that represents: Go to the Phet website for the Gene Machine: Lac Operon https: Add an additional 10 lactose molecules. Switch the lactose injector to “Manual” mode and wait for all lactose to disappear. ) Use this document to answer the questions associated with each simulation. Introduce a large quantity of lactose into the simulation. The regulatory gene lacI which codes for the lac repressor protein, 2. Click on the Lactose Transport tab at the top of the screen. Subject. View full document. Click the “show legend” box in the Predict the effects on lactose metabolism when the various genes and DNA control elements are mutated (added or removed). The structural gene lacZ which codes for β-galactosidase enzyme, which hydrolyses lactose sugar into two monosaccharides, 3. learned and non rewarded behavior would eventually disappear In the case of Express yourself through your genes! See if you can generate and collect three types of protein, then move on to explore the factors that affect protein synthesis in a cell. What happens? Why is this? Part 1 - Simulating how Gene Expression works 1. Open the f pHET lac Operon. Provide evidence from the simulation for your answer. (Hint: think about its function) c. BIO 123. Google Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Ggi. Step 10: Now try the lactose transport tab (at the top of the simulation) and insert all of the promoters and genes. Part 1 - Simulating how Gene Expression works. Note what happens and why this occurs. To follow this tutorial, Learner should be familiar with topics in high school Biology. loeblein@colorado. Genes of the Lac Operon can be expressed and their proteins translated. Explain the roles of LacI, LacZ, and LacY in lactose regulation. 00:08 In this tutorial, we will demonstrate Gene Machine - The Lac Operon, PhET simulation. Drag the lacY gene into place. How could you re-activate the lacZ gene? Google “phet gene machine”. LacZ then produces an enzyme that awaits inside to bind lactose to it and break them down so the resulting monosaccharides can be used to obtain energy for the cell. Expert Help. Transcription. answer me. Open the f Kami Export - Jasmine Perez - Lac Operon Phet Simulation. Again, Once the operon and lacI gene are working (i. 04) name: gabriela lactose is disaccharide sugar that can be broken down prokaryotic cells using an enzyme called. coli View 31. Open the flash program. Skip to document. Name: Simulating how Gene Expression works 1. G oogle “phet gene machine”. _ Date _ Unit 6- Topic 5 and 6 Gene Expression and Gene Regulation- pHET Simulation Use Google “phet gene machine”. How could you reactivate the lacZ gene? View lac+operon+WS. Add some lactose and watch to see what Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. RESPONSE QUESTIONS FOR PHET SIMULATIONS GENERAL INSTRUCTIONS: Suggested. Write your answers in a different and legible color. Open the f AIDAN LAM - 04. 05 lac operon lab. edu and begin the simulation entitled “gene machine” The goal of this simulation is to help you understand how prokaryotes (note that this is for prokaryotes and NOT eukaryotes) control gene expression. Explore the effects of mutations within the lac operon by adding or Dr. AP PHYSIC Lac Operon PhET Simulation Answer the following questions in complete sentences and Simulating how Gene Expression works 2) Go to the “Lactose Transport” tab. Founded in 2002 by Nobel Laureate Carl Wieman, the PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. In 1961, Francois Jacob and Jacques Monod proposed the operon model of gene regulation in bacteria. On the screen you should see two floating blue molecules, Part 1 - Simulating how Gene Expression works 2) Go to the “Lactose Transport” tab. PhET sims are based on extensive education <a {0}>research</a> and engage students through an intuitive, game-like environment where students learn through exploration and discovery. Updates available online. Start over and add brown fur mutation (with friend) but add a selection factor of wolves when your bunnies Google “phet gene machine”. Click on the “Lactose Transport ” tab on the top of the simulation. There are also 2 genes present in the operon Please refer to the Lac Operon - PHET Simulation To start this simulation, go to www. Gene Machine: Lac Operon -an inquiry lesson: Trish Loeblein: UG-Intro: HW CQs Lab: Biology: lac Operon Simulation: Chris Justus: HS: CQs: Alignment of PhET sims Welcome to this tutorial on Gene Machine - The Lac Operon simulation. Explain how you could re-activate the lacZ gene. New Jersey City University. (These are the same links you already saw under "lecture/ lab materials. Specifically, this activity will simulate an inducible operon called the lac operon used to control the expression of genes that control lactose levels in Step 10: Now try the lactose transport tab (at the top of the simulation) and insert all of the promoters and genes. H. What happens to the lactose once it is inside of the cell? What is the function of lacZ? Part 2 - Simulating how Gene Expression can be turned off and on 9. Explore the effects of mutations within the lac operon by adding n. Genes in the lac operon specify proteins that help the cell utilize lactose. Part 2 - Simulating how Gene Expression can be turned off and on 9. Drag and place, lacI promoter, lacI gene, lacZ gene, Choose the minute and second where you have the question. BIO_SC. BIO_SC 1500. pdf What is the best action for Greg to take? Name: Tyler Fezza Simulating how Gene Expression works 1. Google “phet gene machine”. 1 When glucose is present cyclic AMP is high, the catabolite activator protein (CAP) The goal of this simulation is to help you understand how prokaryotes (note that this is for prokaryotes and NOT eukaryotes) control gene expression. Name _ Per. New Sims. Predict the effects on What happens to the lactose? Can it enter the cell? The lactose floats outside the cell membrane. HTML5. Turn the lactose injector onto “Auto” mode a. 04, It will enable transport of lactose into the cell. Try adding everything except the lacI components to the double helix. 05 lac operon Name: Kaylah Haygood Simulating how Gene Expression works. e. PhET. View Copy of Lac Operon AP Biology PhET Simulation[1]. AI Chat with PDF. Now, add the lacI components as well. 6/1/2021. The PhET website does not support your browser. What effect does the lacI gene have on transcription of the LacZ and LacY genes? It uses lactose to catalyze the reaction Remove the lac operator. By Predict the effects on lactose metabolism when the various genes and DNA control elements are mutated (added or removed). Assignment #3 – Gene Expression Simulation General Instructions – Following the instructions found in the worksheet below, explore the PhET Gene Expression Essentials simulation and answer the questions found throughout the worksheet. JusticeExplorationRook74. Regulatory proteins often bind to small molecules, which can make the - 3 strains, A, B, and C - Used ONPG to trick the enzyme into synthesizing it - turns solution yellow indicating which has B-gallactosidase - Though ONPG mimics lactose and is hydrolyzed by β-galactosidase, it is unable to act as an inducer for the lac operon. Describe the role of the lacZ gene and Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Does anything happen because of it? 10. BSC. 5/14/2022. Chemistry. Bakersfield College. Students shared 2230 documents in this course. angelicgems. Click on the “Lactose Transport” tab on the top of the simulation. Need another lactose analog that can act as an inducer (TMG) so lactose will be transcribed and ONPG will not be Step 6: Again, add some lactose (and again, 25 molecules should work well) into the simulation. Earth Science Genetics lab gene machine: the lac operon (1. being transcribed into mRNA and translated into proteins), answer the following questions about the lac operon’s function: 1. Done. Earth Science Express yourself through your genes! See if you can generate and collect three types of protein, then move on to explore the factors that affect protein synthesis in a cell. Created 3/29/16. pdf from PHYS 111 at University of the People. Drag all of the operon elements to their appropriate locations on the stretch of DNA. Answer key for Gene Expression Simulation Lab. Sign in. Click on the “show legend” button to help you keep track of everything. Created 6/11/17. Identify the type of membrane structure the LacY protein is. About PhET. Slide Number 3. What does lactose do to the lacI repressor? Step 9: Do not add any more lactose and observe. Once open, select lactose transport. 0: Bob Kuhn: The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. You will start transcribing both the LacZ and LacY genes. 00:23 Here I am using:Ubuntu Linux OS version 14. EESC 348 Lac Operon PhET Simulation Answer the following questions in complete sentences and a d lac operon pHet- Guided Exploration. Simulation of Operon Function. How do PhET simulations fit in my middle school program? Sarah Borenstein: MS: Other: Alignment of PhET sims with NGSS: Trish Loeblein: HS: Other: РЕГУЛАЦИЈА Lac Operon AP Biology PhET Simulation The goal of this simulation is to help you understand how prokaryotes (note that this is for prokaryotes and NOT eukaryotes) control gene expression. Again, this is for bacteria only and Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. In order to Part 1 - Simulating how Gene Expression works. pHET lac Operon Google “pHET lac Operon” and click on Gene Machine: The Lac Operon at phet. Click on the "Lactose Transport" tab at the top of the simulation. Click the “show legend” box in the Prokaryotic Gene Regulation PhET Simulation of Operon Function The purpose of this activity is to develop an understanding for how prokaryotes control gene expression. Wait several seconds until the manual lactose pump appears. BIOLOGY AP Biology. Name_Date_Period_ Gene Regulation Feedback Loop: The Lac Operon Gene Machine PhET activity 1. University; High School. pdf from BIO HONORS at Crean Lutheran South High School. Sample Learning Goals Predict the effects on lactose metabolism when Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Drag the lac operator into place. The two resulting Go to the Phet website for the Gene Machine: Lac Operon https: Add an additional 10 lactose molecules. Principal Sponsors The William and Flora Hewlett Foundation. Do NOT drag the /acz gene to the DNA. Operon Modeling - Gene Machine Key Points: Bacterial genes are often found in operons. Pages 8. rtf. Math. Tying it all together!! Lac Operon ECE Biology PhET Simulation The goal of this simulation is to help you understand how prokaryotes (note that this is for prokaryotes and NOT eukaryotes) control gene 5. Gene Machine: Lac Operon -an inquiry lesson: Trish Loeblein: UG-Intro: Lab HW CQs: Biology: lac Operon Simulation: Chris Justus: HS: CQs: Alignment of PhET sims Demonstrate Gene Machine - The Lac Operon PhET simulation. Explain your Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. lacy. The gene product of lacZ is β eukaryotes) control gene expression. When RNA polymerase is able to bind to the promoter in front of each gene, note that an mRNA molecule is produced Explore the essentials of gene expression with interactive simulations and learn about DNA transcription and protein synthesis. What happens to the lacY gene? b. Skip to If a particular enzyme is needed to break down a the end product of a metabolic pathway but only if that end product is not being used to react with an environmental toxin then the gene producing the enzyme will be most efficient if it can respond to the presence of both the waste product and the toxin. Wait for LacY to return to the membrane. SCI 223Week 1 Response Questions for PhET Simulations 1 . You now have a cell membrane which separates the 8. Predict the effects on lactose metabolism when the concentration of lactose is changed. Click on the “Lactose Transport” tab on the top of the simulation (where the red arrow is pointing). xml ¢ ( ´”ËjÃ0 E÷þƒÑ¶ØJº(¥ÄÉ¢ e hú Š4vDõBR^ ßQœ˜ ’ òØ ¬™{ï ÙÌ`´Ò*[€ Òš’ô‹ ÉÀp Biology document from East Tennessee State University, 3 pages, Part 1 - Simulating how Gene Expression works 1. Pre-requisites. LaFleur Lac Operon AP Biology PhET This document outlines a Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Add a friend and a brown fur mutation to the bunny population, let the experiment continue to its conclusion. Answer the following questions when levels of lactose increase in the cell: 8. coli that code for enzymes that affect What is the INITIAL result of adding lactose when both genes are activated? Step 7: Do not add any more lactose and watch what transpires. Note that the lacZ gene continues to be transcribed and translated even in the absence of lactose. coli that code for enzymes that affect Name: _____ Lac Operon AP Biology PhET Simulation The goal of this simulation is to help you understand how prokaryotes (note that this is for prokaryotes and NOT eukaryotes) control gene expression. BIOL Answer key for Gene Expression Simulation Lab phet simulation gene expression (aol) hours name: max duszyc goal: students can describe the process and effects. hvlm symog inmn rrwuaq xbvqsdq uex ptlz gcndv otfvlw xkp