生物专业个人陈述PS（本站推荐）.docx

生物专业个人陈述PS（本站推荐）

第一篇：生物专业个人陈述PS（本站推荐）StatementofPurposeJingLi(MyapplicationID:1075276;UTEID:jl49345)ForGraduateProgramofCellandMolecularBiology,theUniversityofTexasatAustinAsIsatinanimageprocessingroomofmylab,clickingawayattheinsituhybridization(ISH)figuresinfrontofme,Iglancedatthemouseembryosectionsonebyone.Theydisplayedtheprocessofmicedevelopment,theexpressionpatternofZfp521,Aqp1,AB063319,etc.inmouseembryos,andthechronologicalappearanceoforgansandtissuesrespectively.Wasitpossiblethattheformationofcomplexmammalianstructures,thousandsofyearsofevolutionandthemiraculousappearanceoflifehadbeenencryptedintotheseseeminglysimpleimages?Ihadtowonder:whydoesthedevelopmentofembryosneedtogothroughsuchacomplexprocess，ratherthandiscardingpreviousformsanddirectlydevelopingmammaliancharacteristics?“Biology,”Iansweredinstinctivelywhenaskedtochoosemymajor.Iwasintriguedbybiologicalphenomenaasachild,andtheseeminglymysticalprecisionofitfilledmewithquestions.Whydopandasandrabbits,similarasjuveniles,growintotwoverydifferentorganisms?Whyareourvisualexperiencesdistinctlydifferentfromthoseofotherorganisms?Whycanpeopletalk,whileorangutans,withsimilaranatomicalconfigurations,cannot?Beingunsatisfiedwithanyanswermyparentscouldoffer,Iconstantlysoughtrelevantinformationfromotherresources.Whenthetimecame,IchoseBiotechnologyasmymajorincollegewithouthesitation.Thereisatheorythattheprocessofmammaliandevelopmentinuteroreplaysevolutionaryhistory:fromagermcell(likeamonad),togermlayers(likecoelenterate),totheappearanceanddisappearanceofthebranchialarchandtail(likeinfishandamphibians),untilthebirthofamammalwithalmostallmatureorgansandtissues.Iwondered,whycan’tmammaliantraitsbedirectlydeveloped?Propelledbythisquestion,Icontactedoneofmycourseinstructorsmyfreshmanyear,expressingthedesiretoenterthedevelopmentlabandstudythisproblemmoreactively.ThisinstructorrecommendedIconsultsomereferencebooksaspreparationbeforeconductingexperimentsindependently.AftermorethanayearofstudyingbasicprinciplesofexperimentationinC