基础综合三（basic synthesis three）

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1、基础综合三（Basicsynthesisthree）2012clinicalpractitioners"basiccomprehensivethree"selectedsimulationquestionsthree41.repressorproteinsaresynthesizedbywhichgenes?A.structuralgeneB.promoterC.manipulationgeneD.informativegeneE.suppressorgeneStandardanswer:E42.,thesequencethatcombinesRNApolymer

2、aseandinitiatestranscriptionis()A.operonB.promoterC.restD.transcriptionfactorE.enhancerStandardanswer:B43.,theDNAsequencethatproducestheactiveproteinthroughgeneexpressionis()A.codinggeneB.manipulationsequenceC.decayunitD.intronE.startupsequenceStandardanswer:AThestructuralcharacterist

3、icsoftheactivechromatinsegmentofthe44.geneare(?)A.istightlypackedintonucleosomesB.isdispersedinthenucleusintheformofchromatinC.isdispersedintheformofheterochromatinaroundthenucleusThebindingrateofhistoneD.washigherE.hasresistancetotheDNAenzymeStandardanswer:B45.whichoneofthefollowings

4、tatementsistrueaboutthepromoter?A.beginstobetranslatedintoDNAsequencesB.beginstotranscribeDNAsequencesthatproducemRNAC.beginstocombinetheDNAsequencesofRNApolymeraseD.repressorbindingsequenceofDNAE.producesarepressorgeneStandardanswer:C46.,thereisaclassofsignalingpathwaysinwhichprotein

5、kinasefunctionsareassociatedwithGprotein,phospholipaseC,andcalciumionfunction.Suchsignalingpathwaysarecalled()A.proteinkinaseApathwayB.proteinkinaseGpathwayC.proteinkinaseCpathwayD.tyrosineproteinkinasepathwayNomorethanE.Standardanswer:CThesecondmessengerofthe47.hormonedoesnotinclude(

6、)A.PIP2B.CAMPC.DGD.Ca2+E.IP3Standardanswer:A48.,theactionofmembranereceptorsis()A.thyroxineB.epinephrineC.estrogenD.vitaminDE.adrenalcorticalhormoneStandardanswer:B49.Gproteinis()A.,acalciumbindingproteinB.,anabbreviationofadeninenucleotidebindingproteinC.,aguaninenucleotidebindingpro

7、teinD.,atwoacylglycerolbindingproteinE.,aphospholipaseCbindingproteinStandardanswer:C50.cAMPcanbeallostericactivated()A.phospholipaseAB.proteinkinaseAC.proteinkinaseCD.proteinkinaseGE.tyrosineproteinkinaseStandardanswer:BThesecondmessengerofatrialnatriureticfactor51.A.CAMPinformationd

8、elive