《医学细胞生物学》第08章细胞核

《《医学细胞生物学》第08章细胞核》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、EighthchapternucleusFirst,themultiple-choicequestion1.Whichofthefollowingstatementsisfalseaboutthenuclearenvelope?Aconsistsoftwolayersofmembrane,B,nuclearpore,CandnuclearporecomplexD,andisaclosedmembranestructureEandribosomesareattachedtotheoutermembraneofthenuclearenvelope2.the

2、nuclearenvelopedoesnothavethecharacteristicsofAcontrolstheexchangeofsubstancebetweennucleusandsubstanee,B,foreignbodyindigestivecell,C,andmaintainstheshapeofnueleusD,thegeneticmaterialDNA,isconcentratedinspecificregionsofthecell,E,andattachedribosomes3.Thefollowingorganellesaren

3、otfoundinprokaryoticcellsA,plasmamembraneB,ribosomeC,nuclearmembraneD,cellwallEandcellmatrix4whichofthefollowingnitrogenbasesdoesnotexistintheDNAmolecule?A,thymine,B,cytosine,C,guanine,D,uracil,E,adenine5.ThedistributionofDNA,thegeneticmaterialofeukaryoticcellsA,lysosomes,B,cyto

4、plasm,C,nucleusandmitochondria,D,nucleusandendoplasmicreticulum,E,ribosome6aboutthenucleus,thefollowingdescriptioniswrongThemajordifferencebetweenAandprokaryoticcellsisthatthereisnocompletenuclearB,andthemainfunctionofnucleusistostoregeneticinformationThemorphologyofCandnucleiis

5、sometimescompatiblewithcellularmorphology.D,eacheukaryoticcell,hasonlyonenucleusEisthelargestcellorganelleinthecell7,rRNAismadeupofAandmitochondrialDNAaretranscribedandtranscribedbyB,theDNAofthenucleolarorganizerCandnucleosomeDNAaretranscribed,DandDNAreplicate,andEandheterochrom

6、atinDNAaretranscribed8.ThemostimportantsubstanceinthenucleusisA,nuclearproteinB,histoneC,nonhistoneD,DNA,E,andRNA9andDNAsemiretainedreplicationoccurredinA,interphaseB,prophaseC,metaphaseD,lateE,terminalstage10.ThemainsubstancethatmakesupchromosomesA,sugarsandproteins,B,lipidsand

7、DNA,C,DNAandRNA,D,proteinsandDNAE,DNA,andlipids11.ThemainsubstancethatmakesupnucleosomesisA,DNAandhistoneB,RNAandhistoneC,DNAandnonhistoneD,RNAandnonhistoneproteinsE,DNA,andRNA12.Inthenucleus,whichofthefollowingstructuresstoresgeneticinformation?A,nucleolarB,nuclearporecomplexC,

8、nuclearmembraneD,chromatinEandnuclearmembranega