资源描述：
《中大细胞生物学课前训练题》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、2006细胞课Q&A•QBydaisy2006.9.51.Yournext-doorneighborhasdonated$20insupportofcancerresearchandinhorrifiedtolearnthathermoneyisbeingspentonstudyingbreweryeast.Howcouldyouputhermindatease?(1)、参考答案：为什么你的邻居会有这种担心？(2)、参考答案：为什么要假设？2.anadulthumaniscomposedofabout1013cells,a
2、llofwhicharederivedbycelldivisionfromasinglefertilizedegg.A.Assumingthatallcellscontinuetodivide(likebacteriainrichmedia).Howmanygenerationsofcelldivisionswouldberequiredtoproduce1013cells?B・Humancellsinculturedivideaboutonceperday.Assumingallcellscontinuetodivide
3、atthisrateduringdevelopment,howlongwouldittaketogenerateanadultorganism?C.Whyisit,doyouthink,thatadulthumantakelongertodevelopthancalculationsmightsuggest?2006.9.121.FriedrichMiescher(1844-1895),GregorMendel(1822-1884),LouisPasteur(1822-1895),andRudolfVirchow(1821
4、-1902)wereEuropeanscientists(fromSwitzerland.Austria,France,andGermany,respectively)whosemostimportantdiscoveriesweremadeinthe20-yearperiodfrom1855to1875・assumethatthefourmenmetatascientificconferencein1875todiscusstheirrespectivecontributionstobiology.(a)Whatmigh
5、tthefourscientistshavefoundtheyhadincommon?(b)WhatdoyouthinkPasteurmighthavefoundmostintriguingorrelevantaboutVirchow'swork?Explainyouranswer.(c)WhatdoyouthinkVirchowmighthavefoundmostintriguingorrelevantaboutMcndcPswork?Explainyouranswe匚(d)InwhoseworkdoyouthinkMi
6、eschermighthavebeenthemostinterested?Explainyouranswe匸答：(a)Thefourscientistsmighthavefoundthattheyhadcommoninterestsintheoriginofcells(frompreexistingcells,notby"spontaneousgeneration11)andthenatureofthegeneticinformationthatorganismspassontotheirprogeny.(Bearinmi
7、nd,however,thatweareansweringthequestionfromtheperspectiveofalmost125yearsoffurtherdiscoveriesandinsights.In1875,thefourscientistsmightwithequallikelihoodhaveconcludedthattheyhadfew,ifany,interestsincommon.)(b)GivenPasteur'sdemonstrationthatliving,preexistingyeast
8、cellsarcneededtocarryoutthefermentationofsugarintoalcohol,hewouldalmostcertainlyhavebeeninterestedinVirchow'sconclusionthatallcellscomefrompreexistingce
