The lac operon (article) | Khan Academy

With that for context, what exactly is the lac operon? The lac operon is an operon, or group of genes with a single promoter (transcribed as a single mRNA). The ... Ifyou'reseeingthismessage,itmeanswe'rehavingtroubleloadingexternalresourcesonourwebsite. Ifyou'rebehindawebfilter,pleasemakesurethatthedomains*.kastatic.organd*.kasandbox.orgareunblocked. CoursesMath:Pre-K-8thgradePre-Kthroughgrade2(KhanKids)Earlymathreview2ndgrade3rdgrade4thgrade5thgrade6thgrade7thgrade8thgradeSeePre-K-8thgradeMathMath:GetreadycoursesGetreadyfor3rdgradeGetreadyfor4thgradeGetreadyfor5thgradeGetreadyfor6thgradeGetreadyfor7thgradeGetreadyfor8thgradeGetreadyforAlgebra1GetreadyforGeometryGetreadyforAlgebra2GetreadyforPrecalculusGetreadyforAP®CalculusGetreadyforAP®StatisticsMath:highschool&collegeAlgebra1GeometryAlgebra2TrigonometryPrecalculusHighschoolstatisticsStatistics&probabilityCollegealgebraNEWAP®︎/CollegeCalculusABAP®︎/CollegeCalculusBCAP®︎/CollegeStatisticsMultivariablecalculusDifferentialequationsLinearalgebraSeeallMathTestprepSATLSATPraxisCoreMCATScienceMiddleschoolbiology-NGSSNEWMiddleschoolEarthandspacescience-NGSSNEWMiddleschoolphysics-NGSSNEWHighschoolbiologyHighschoolbiology-NGSSHighschoolphysicsHighschoolphysics-NGSSAP®︎/CollegeBiologyAP®︎/CollegeChemistryAP®︎/CollegeEnvironmentalScienceAP®︎/CollegePhysics1SeeallScienceComputingComputerprogrammingAP®︎/CollegeComputerSciencePrinciplesSeeallComputingArts&humanitiesUShistoryAP®︎/CollegeUSHistoryUSgovernmentandcivicsAP®︎/CollegeUSGovernment&PoliticsWorldHistoryProject-OriginstothePresentWorldHistoryProject-1750tothePresentArthistoryAP®︎/CollegeArtHistorySeeallArts&HumanitiesEconomicsMacroeconomicsAP®︎/CollegeMacroeconomicsMicroeconomicsAP®︎/CollegeMicroeconomicsSeeallEconomicsReading&languageartsUpto2ndgrade(KhanKids)2ndgrade3rdgrade4thgrade5thgrade6thgrade7thgrade8thgrade9thgradeGrammarSeeallReading&LanguageArtsLifeskillsSocial&emotionallearning(KhanKids)CareersPersonalfinanceGrowthmindsetInternetsafetyNEWSeeallLifeSkillsSearchDonateLoginSignupSearchforcourses,skills,andvideosMaincontentScienceAP®︎/CollegeBiologyGeneexpressionandregulationRegulationofgeneexpressionandcellspecializationRegulationofgeneexpressionandcellspecializationDNAandchromatinregulationRegulationoftranscriptionCellularspecialization(differentiation)Non-codingRNA(ncRNA)OperonsandgeneregulationinbacteriaOverview:GeneregulationinbacteriaLacoperonThelacoperonThisisthecurrentlyselecteditem.TrpoperonThetrpoperonOverview:EukaryoticgeneregulationTranscriptionfactorsPractice:RegulationofgeneexpressionandcellspecializationNextlessonMutationsScience·AP®︎/CollegeBiology·Geneexpressionandregulation·RegulationofgeneexpressionandcellspecializationThelac operonRegulationofgenesforlactoseutilization.lac repressor,cataboliteactivatorprotein,andcAMP.GoogleClassroomFacebookTwitterEmailRegulationofgeneexpressionandcellspecializationDNAandchromatinregulationRegulationoftranscriptionCellularspecialization(differentiation)Non-codingRNA(ncRNA)OperonsandgeneregulationinbacteriaOverview:GeneregulationinbacteriaLacoperonThelacoperonThisisthecurrentlyselecteditem.TrpoperonThetrpoperonOverview:EukaryoticgeneregulationTranscriptionfactorsPractice:RegulationofgeneexpressionandcellspecializationNextlessonMutationsSortby:TopVotedLacoperonTrpoperonUpNextTrpoperonBiologyisbroughttoyouwithsupportfromtheAmgenFoundationBiologyisbroughttoyouwithsupportfromtheAP®isaregisteredtrademarkoftheCollegeBoard,whichhasnotreviewedthisresource.