雨课堂学堂在线学堂云Food Biotechnology(沈阳农业大学)单元测试考核答案

第1题In1982,theU.S.FoodandDrugAdministrationapprovedthefirstgeneticallyengineeredproduct,(),tobeputonthemarket,whichmarkedtheofficialcommercializationofgeneticallyengineeredproducts.AHumaninsulinBRecombinantproteinsCRecombinantDNAmoleculesDGeneticallyengineeredbacteria第2题Thedevelopmenttrendsoffoodbiotechnologyaremainly()AWidespreaduseofgeneeditingtechnologyBImprovementoffoodnutritionandsafetyCDiversefoodoptionsDConvergencewithAItechnology正确答案：ABCD第3题Theuseofbiotechnologyenablestheproductionofavarietyoffoodadditives,including()AVCBSodiumerythorbateCcarotenoidDVE正确答案：ABCD第4题Biotechnology____referstothefactthatpeoplecanproducetheproductsneededforhumanbeingsorachievecertainpurposesbasedon____,combinedwiththescientificprinciplesofotherbasicsciences,usingadvancedscientificandtechnologicalmeans,andtransforming____accordingtopre-design.正确答案：:biotechnology正确答案：:Modernlifesciences正确答案：:organismsorprocessedbiologicalrawmaterials第5题Biotechnologyisimportantinthedesignandprocessoptimizationof____toimprovefoodquality,producefunctionalfood,andimprovetheutilizationrateoffoodresourcesandreduceenergyconsumption.正确答案：:Foodbioprocessingandmanufacturingprocesses第1题Geneeditingtechnologyistoobtaingoodtraitsbychangingtheexpressionofitsowngenes,andtransgenictechnologyistoobtaingoodtraitsbyrelyingontheexpressionofforeigngenes.第2题HorizontalgenetransferDifferentbiologicalindividualsmaybethesamespeciesbutcontaindifferentgeneticinformation.第3题TheapplicationofAIingeneticresearchishelpingtodiscovernewdrugtargetsandtreatments.第4题In1982,theU.S.FoodandDrugAdministrationapprovedthefirstgeneticallyengineeredproduct,(),tobeputonthemarket,whichmarkedtheofficialcommercializationofgeneticallyengineeredproducts.AHumaninsulinBRecombinantproteinsCRecombinantDNAmoleculesDGeneticallyengineeredbacteria第5题Geneticengineeringuses____torecombine____and________invitro,andtransfertherecombinantDNAformedintorecipientcells,sothatforeigngenescanbereplicatedandexpressedinthem,soastomodifybiologicalcharacteristicsandproduceproductsrequiredbyhumanbeings.正确答案：:enzymaticmethods正确答案：:exogenousgenes正确答案：:carrier正确答案：:DNATest第1题Modernfoodbiotechnologymainlyobtainsproductsthroughmicrobialprimaryfermentation,whichislimitedtothefieldsofmicrobialfermentationandchemicalengineering.()第2题Whatarethewaysinwhichthefermentationprocessiscarriedout?AFermentationinbatchesBLiquiddeepfermentationCFermentationinbatchesDContinuousfermentation正确答案：ACD第3题Whichofthefollowingistheeffectoftemperatureonfermentation()AThereactionrateoftheenzymeBProteinpropertiesCPhysicalpropertiesoffermentationbrothDDirectionofbiosynthesis正确答案：ABCD第4题FactorsthatcausepHtoriseduringfermentation()AExcesscarbonsourcesBHypernitrogensourceCExcessiveadditionofdefoamingoilDThepresenceofphysiologicalalkalinesubstances正确答案：BD第5题Accordingtothedifferentneedsofoxygeninthefermentationprocess,thefermentationtypecanbedividedinto()AAnaerobicfermentationBFacultativeanaerobicfermentationCVentilationfermentationDSolid-statefermentation正确答案：AC第6题Whensterilizingthemediuminthefermentationindustry,considerationshallbegivento()asfaraspossibleinadditiontosterilization.AReduceenergyconsumptionBReducedsterilizationtimeCReduceddisruptionofmediacomponentsDReducelaborinputTest第1题Geneeditingtechnologyobtainsexcellenttraitsbychangingtheexpressionofitsowngenes,whiletransgenictechnologyreliesontheexpressionofexogenousgenestoobtainexcellenttraits.

第2题Genetichorizontaltransferofdifferentorganismsmaybethesamespeciesbutcontaindifferentgeneticinformation.

第3题TransductionisthetransferofDNAandgeneticrecombinationbetweendonorandrecipientcellswhenthevirusisreleasedfromaninfectedcellandre-infectsanothercell.第4题Transgenesisisatypicalartificialhorizontaltransferofgenes.第5题TheamountandpurificationoftemplatenucleicacidsisoneofthekeylinksinthesuccessorfailureofPCR.第6题PrimersarekeytoPCR-specificreactions,andthespecificityofPCRproductsdependsonthedegreetowhichprimersarecomplementarytothetemplateDNA.第7题qPCRutilizesafluorescentprobethatcanbecombinedwithatargetsequencetoproduceafluorescentsignal.第8题RT-PCRcanonlybequalitative,notquantitative.第9题AsynthesizedpairofprimerscanbindtotwooligonucleotidesequencesthatcomplementarilybindtothetemplateDNA,oneofwhichiscalledtheupstreamprimerandtheotheriscalledthedownstreamprimer.第10题useofgeneticengineeringfermentationtoproduceantimicrobialpeptideshasstrongpurpose,andthereisroomforimprovingtheyieldtechnically,especiallytheapplicationofedibleengineeringbacteria,whichisanidealwaytoproduceantimicrobialpeptideswithlowcostandwideapplication.Test第1题Thefollowingexamplesillustratethetotipotencyofcells()(1)Plantableplantswereculturedfromsinglecellsofcarrotsculturedinsuspension;(2)seedgermination,growingintoaplant;(3)Fertileplantswerecultivatedwithtobaccocallus.A②B①③C②③D①②③(2)Theseedisnotacell,sothepropagationofoffspringwithplantseedscannotreflectthetotipotencyofthecell,whichiswrong;(3)Fertileplantswerecultivatedwithtobaccocallus,whichreflectedthetotipotencyofplantsomaticcells.So,(1)(3)iscorrect.第2题Thefollowingbiologicalprocessesinwhichcelldifferentiationoccursandsomatictotipotencyare()ACornseedsgerminateandgrowintonewplantsBMousebonemarrowhematopoieticstemcellsformvariousbloodcellsCWheatpollenisdevelopedintohaploidplantsbyexvivocultureDThephloemcellsofcarrotrootsaredevelopedintonewplantsbytissueculture第3题Whenculturingcarrotphloemcellsintoseedlings,oneofthefollowingconditionsisnotrequired()ACellswithanintactnucleusBcertainnutrientsandplanthormonesCInvitroDImportspecificgenes第4题Thefollowingstatementsaboutcelldifferentiationandcelldivisionarewrong()ACelldifferentiationdoesnotnecessarilyincreasethetotalareaofthecellandthevarietyofproteinsBThegrowthanddevelopmentofanorganismistheresultofcelldivisionandcelldifferentiationCCelldivisionisthebasisofcelldifferentiationDAsaresultofcelldifferentiation,thenumberofcellsischanged第5题Thefollowingexperimentsthatdonotillustratethetotipotencyofcellsare()AMutagenictomatoseedsaregrownintoplantsBThemesophyllcellsofvioletsareculturedintoplantsCTomatoesarefusedwithpotatocellsandgrownintoplantsDGeneticallymodifiedcottoncellsarecultivatedintoplants第6题Amongthefollowingbreedingmethods,thosethatarenotrelatedtotissueculturetechnologyare()AHaploidplantswereobtainedbyantherinvitrocultureBColchicinetreateddiploidseedlingstoobtaintetraploidplantsCArtificialseedsarecultivatedbytissuecultureDThe"tomato-potato"hybridplantwasculturedbysomaticcellhybridization第7题Theresultofsomaticcellhybridizationinplantsis().AProducehybridplantsBProduceshybridcellsCprotoplastfusionDFormationofcallus第8题Ofthefollowingnarrativescloselyrelatedtosomaticcellhybridizationinplants,theerroneousoneis()AInducedbycentrifugation,vibration,electricexcitation,etcBInducedwithreagentssuchaspolyethyleneglycol(PEG).COvercomingtheobstacleofincompatibilitybetweendistanthybridsDRapidpropagationandcultivationofvirus-freeplants第9题Whendesigningplantsomaticcellhybridizationexperiments,ifyouwanttoobtainnewcropvarietieswithexcellenttraits,youusuallydon'tneedtoconsider()AChooseparentswithexcellenttraitsBSelectenzymesthatremovethecellwallCReproductiveisolationbetweenparentsDConcentrationandratioofauxinandcytokinininthemedium第10题TransductionistheprocessbywhichforeignDNAisintroducedintoahostcellandcausesachangeinbiologicaltypeortheacquisitionofanewgeneticphenotypebythehostcell.Test第1题Ionexchangeisamethodofseparationandpurificationbyexchangingchargedsolutemoleculeswith____.正确答案：:Exchangeableionsinanionexchanger第2题Thebiologicalseparationandpurificationtechnologyisbasedonthemulti-componentandlowconcentration()astheresearchobject,andtheseparationunitoperationisthemainlinetoconstructitstheoreticalsystem.ABiomaterialsBChemicalMaterialsCPhysicalMaterialsDInorganicmaterials第3题Theproductpurificationstagerequiresthattheproductrecoveryratebeincreasedasmuchaspossible().AProductcategory:BProductvolumeCProductpurityDProductsize第4题Thepurposeoftheprecipitationmethodis()。AAchievethepurposeofconcentrationthroughprecipitation;BTheprecipitationmethodcanselectivelyprecipitateimpuritiesorselectivelyprecipitatetherequiredcomponentsforpreliminarypurification;CThepurifiedproductisconvertedfromaliquidtoasolidstateforpreservationorfurtherprocessing.DAlloftheabove第5题Thebiologicalseparationandpurificationtechnologyisbasedonthemulti-componentandlowconcentration()astheresearchobject,andtheseparationunitoperationisthemainlinetoconstructitstheoreticalsystem.ABiomaterialsBChemicalMaterialsCPhysicalMaterialsDInorganicmaterials第6题Thepurificationstageoftheproductrequiresthattheproductrecoveryratebeincreasedasmuchaspossible().AProductcategoryBProductvolumeCProductpurityDProductsize第7题Thepurposeoftheprecipitationmethodis().AAchievethepurposeofconcentrationthroughprecipitationBTheprecipitationmethodcanselectivelyprecipitateimpuritiesorselectivelyprecipitatetherequiredcomponentsforpreliminarypurification;CThepurifiedproductisconvertedfromaliquidtoasolidstateforpreservationorfurtherprocessing.DAlloftheabove第8题Featuresofbioseparationandpurificationtechnologiesinclude()ATheconcentrationofthetargetproductislow,andthepurificationisdifficultBThenatureoftheactivesubstanceisunstable,anditiseasytobeinactivatedduringoperationCThenumberofbiochemicalcomponentsinbiomaterialsislarge,andseparationisdifficultDBiomaterialsaresusceptibletodeteriorationanddifficulttopreserveEThequalityofbiologicalproductsisofhighstandard正确答案：ABCDETest第1题Whichofthefollowingisthedetectionmethodfortransgenicplantsatthetranscriptionlevelofthegeneofinterest?()ANortherncrossingBELISAassayCPCRtestDWesternhybridization第2题Whichofthefollowingisthedetectionmethodofexogenousgeneexpressionproteinintransgenicplants?()ANortherncrossingBELISAassayCPCRtestDSouthernhybridization第3题WhichofthefollowingisadrawbackoftheNorthernHybridizationDetectiontechnology?()APronetofalseresultsBLowdetectionoflow-abundancemRNAsincellsCItiseasytohaveproblemssuchastoohighbackgrounda