《普通遗传学实验》

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1、《普通遗传学实验》Firstsemester2012semesterfinalexaminationroll2011Thecourse"generalgeneticsexperiment^examinationtime:120minutesClassname,studentnumberItemnumber12345totalscoreScoreThemarkingAglossary(tomatcheach1points,atotalof10points)・1,SCcomplex(synapton

2、emal):2,homologouschromosomes(homologous,chromosome):3,sexuallinkage(sex,linkage):Chromosomeaberration,4:Structuralheterozygote5:6.Structuralhomozygote:7,balaneedtranslocation:8,oftenchromatin:9heterochromatin:10,Mendelgroup:Two,choice(tomatcheach1po

3、ints,atotalof10points).1,meiosisisaspecialwayofcelldivisionthatoccursonlyduringgametogenesis・Relatingtothisprocessis()Aandhomologouschromosomesseparateintheseconddivision,B,afterthedivision,hasacompletesetofgeneticmaterialoftheparentsCresultsinthefor

4、mationoffourindependentdevelopmentalcells,D,andareductionofhalfthegeneticmaterial2,IntheseriesofexperimentsonDrosophilamelanogaster,thecollectionofvirginfliesisespeciallyimportant・Whenthepupaeemergeintofruitflies,whichperiodoftimeisappropriateforthec

5、ollectionofvirginflies?・()A,6^15hours,Bhours,12^13hours,Chours,8^12hours,Dhours,13、16hours3,aplant2n二10,inmetaphaseI,eachcellcontainsmanychromatidbodies・A,10B,5C,20D,404,heterozygousAaBbproducestwospermnucleiinthesamepollen,dndoneofitsgenotypesmaybe.

6、A,AB,andAb;B,AaandBb;C,ABandAB;D,Aa,andAa.5.Thenumberofchromatidbodiesinthetwodaughtercellsformedbythefirstmeioticdivisionofthe2n=20chromosomeofmaizesomaticcells・A,20B,10C,5D,40bars6.Alargemegasporemothercellundergoesmeiosistoformfourlargespores,andf

7、inallyforms()・A,fourfemalegametes,B,twofemalegametesC,afemalegameteD,andthreefemalegametes7genesinachromosomearecompletelylinkedtotwo(A/B)(a,b)andCgeneonachromosome,independentofeachother,hybridsbetweenAaBbCcandthreerecessiveindividuals,offspringmaya

8、ppear(A,8)showedequalproportionofB,theperformanceof8kindsoftypeineachofthefourequalproportionofC,the4typesofeachofthetwokindsofequalproportionofD,theperformanceof4kindsoftypesinequalproportions8,infruitflies,redeye(W)isdominantinwhiteeye(W),whichison