关于dna的简短英语作文.docx
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关于dna的简短英语作文.docx
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关于dna的简短英语作文
关于dna的简短英语作文
1.帮忙写一篇有关DNA的英语作文
AboutthetextI'velearned
Afterlearningthetexttalkingaboutcloningtechnology,Ithoughtalot.Therefore,Iwrotedownwhatcameintomymindinmydiary:
TheDNAofchildrenisfromtheirparents.Ifmymotherhasasmilingmouth,sowillIhavethesimilarone;Ifmyfatherownsbigeyes,Iwillalsohaveones;Ifmymotherisshort,I'llprobablybeshort,too.Myparentshaveblackhair,somyhairwillalsobeblack.Iwanttoclonemyselfverymuch.Inthatway,Iwon'thavetogotoschool.Insteadofthat,Icouldplayallthetime,andthecloning"I"wouldgostudyinginplaceofme.
大意是:
学了关于克隆的文章后,李明很有感受,他在日记中写道:
孩子的DNA来自父母。
妈妈的嘴笑,所以我的嘴也笑,爸爸的眼睛大,所以我的眼睛也大,妈妈的个子矮,所以我的个子也矮;他们的头发都很黑,所以我的头发也很黑。
我特别想克隆一个我。
那样的话,我就不用上学,每天玩耍,而让他替我上学!
2.英语作文:
DNA,急
WhatisDNA?
DNA,ordeoxyribonucleicacid,isthehereditarymaterialinhumansandalmostallotherorganisms.Nearlyeverycellinaperson'sbodyhasthesameDNA.MostDNAislocatedinthecellnucleus(whereitiscallednuclearDNA),butasmallamountofDNAcanalsobefoundinthemitochondria(whereitiscalledmitohondrialDNAormtDNA).
TheinformationinDNAisstoredasacodemadeupoffourchemicalbases:
adenine(A),guanine(G),cytosine(C),andthymine(T).HumanDNAconsistsofabout3billionbases,andmorethan99percentofthosebasesarethesameinallpeople.Theorder,orsequence,ofthesebasesdeterminestheinformationavailableforbuildingandmaintaininganorganism,similartothewayinwhichlettersofthealphabetappearinacertainordertoformwordsandsentences.
DNAbasespairupwitheachother,AwithTandCwithG,toformunitscalledbasepairs.Eachbaseisalsoattachedtoasugarmoleculeandaphosphatemolecule.Together,abase,sugar,andphosphatearecalledanucleotide.Nucleotidesarearrangedintwolongstrandsthatformaspiralcalledadoublehelix.Thestructureofthedoublehelixissomewhatlikealadder,withthebasepairsformingtheladder'srungsandthesugarandphosphatemoleculesformingtheverticalsidepiecesoftheladder.
AnimportantpropertyofDNAisthatitcanreplicate,ormakecopiesofitself.EachstrandofDNAinthedoublehelixcanserveasapatternforduplicatingthesequenceofbases.ThisiscriticalwhencellsdividebecauseeachnewcellneedstohaveanexactcopyoftheDNApresentintheoldcell.
DNAisadoublehelixformedbybasepairsattachedtoasugar-phosphatebackbone.
3.帮忙写一篇有关DNA的英语作文
AboutthetextI'velearnedAfterlearningthetexttalkingaboutcloningtechnology,Ithoughtalot.Therefore,Iwrotedownwhatcameintomymindinmydiary:
TheDNAofchildrenisfromtheirparents.Ifmymotherhasasmilingmouth,sowillIhavethesimilarone;Ifmyfatherownsbigeyes,Iwillalsohaveones;Ifmymotherisshort,I'llprobablybeshort,too.Myparentshaveblackhair,somyhairwillalsobeblack.Iwanttoclonemyselfverymuch.Inthatway,Iwon'thavetogotoschool.Insteadofthat,Icouldplayallthetime,andthecloning"I"wouldgostudyinginplaceofme.大意是:
学了关于克隆的文章后,李明很有感受,他在日记中写道:
孩子的DNA来自父母。
妈妈的嘴笑,所以我的嘴也笑,爸爸的眼睛大,所以我的眼睛也大,妈妈的个子矮,所以我的个子也矮;他们的头发都很黑,所以我的头发也很黑。
我特别想克隆一个我。
那样的话,我就不用上学,每天玩耍,而让他替我上学。
4.关于DNA的作文
我不想做梦,我想追上梦。
幻想打算我的DNA。
——题记
假如傲慢没被现实大海冷冷拍下,又怎会懂得要多努力,才走得到远方。
还记得爷爷小时候最常说的一句话便是,“你肯定要脚踏实地,不浮躁地迈好每一步,这样你的梦就不会遥远了。
”少时无知,不曾记得。
学校中,始终身为佼佼者的我自踏入学校后始终难免会有一种“会当凌绝顶,一览众山小”的架势。
看着其他同学紧急地置身于水深火热之中,而我却优哉游哉,好像是一个不食人间烟火的仙子,冷眼旁观着世界每天的变化。
直至,那个下午,我被玉皇大帝丢入了滚烫的火炉中,无法自拔,沉沦。
那次考试,信念满满的我由于成果单而变得心灰意冷。
我竟然考到了班级倒数其次,成果更是低的创新高。
而父母得知后,他们并没有怒斥我,而只是为我分担忧愁。
自那次后,我变打算背起行囊,踏上追梦的旅程。
假如幻想不曾坠落悬崖,千钧一发,又怎会晓得执着的人,拥有隐形翅膀。
那年夏天,始终陪着我追梦的爷爷变成了天上那颗最光明的星星。
那一刻我才真正地记起爷爷在去世前最终的一句话,“记得要好好读书,脚踏实地,爷爷的梦已经完成了,但放心爷爷会始终在你看不到的地方陪着你。
”自爷爷去世后,我倍受打击。
毅然决然的下定决心肯定要追到梦这偷走爷爷的小偷。
开头每天不断地做练习,背课文,读考点。
每天晚上,迎着早晨的第一缕阳光,扯开嗓门朗读着课本。
放学回家后,我面朝电脑,听着听力。
就这样,每天循环往复地努力着。
最终,在那一学期的期末取得了佳绩。
渐渐地,我开头信任,随着追梦旅程前进的步伐,我的背上有一双翅膀正在萌芽。
最后的幻想,紧握在手上,最想要去的地方,怎样能在半路就返航,最后的幻想,肯定会到达。
幻想不只要一个,战胜了第一个,并非我的幻想。
现在的我,看遍了世界的冷暖,人群间的悲欢离合,受够亲人离别的苦痛,我愈发信任我的梦不只可以是现实的,它可以是高不可攀的。
梦中我可以很幸福,我可以变得更强大,可以有足够的力量照看好家人。
可能在梦的终点我可以有一个暖和的家,那才是我真正在追随的梦,那也肯定是爷爷最想看到的结果。
想到此,不由潸然泪下。
实现了真的渴望,才能够算到过了天堂。
我不会放弃追梦的决心,更不会放弃那些追梦日子里长出的翅膀。
巨人作文网专稿,未经许可,转载必究。
5.给我一篇英语的有关DNA定义和历史的文章
DNAisbasicallyalongmoleculethatcontainscodedinstructionsforthecells.EverythingthecellsdoiscodedsomehowinDNA-whichcellsshouldgrowandwhen,whichcellsshoulddieandwhen,whichcellsshouldmakehairandwhatcoloritshouldbe.OurDNAisinheritedfromourparents.WeresembleourparentssimplybecauseourbodieswereformedusingDNAtoguidetheprocess-theDNAweinheritedfromthem.Wemayresembleourparents,butweareneverexactlylikethem.ThisisbecauseeachchildgetsonlysomeoftheDNAeachparentcarries.AbouthalfourDNAcomesfromourmother,andhalfcomesfromourfather.Whichpieceswegetisbasicallyrandom,andeachchildgetsadifferentsubsetoftheparents'DNA.Thus,siblingsmayhavethesameparents,buttheyusuallydonothaveexactlythesameDNA(exceptforidenticaltwins).DNAisalongmolecule,likeachain,wherethelinksofthechainarepiecescallednucleotides(sometimesalsocalled'bases').TherearefourdifferenttypesofnucleotidesinDNAwhichwe'llcall'A','G','C'and'T'.Thesefourareallthat'snecessarytowriteacodethatdescribesourentirebodyplan.Soundstoosimple?
KeepinmindthatMorseCodeusesonlyfoursymbols(dot,dash,shortspacesandlongspaces),andyoucouldspelloutentireencyclopediasofknowlegewiththatsimplecode!
DNAchainsaremadebyconnectingthosenucleotidestogetherviachemicalbonds.Atrightisadiagramshowingfournucleotidesconnectedtoformanoligonucleotide,inthiscaseanRNAoligo(notethatithas'-OH'atthelowerrightcornerofeachnucleotide,asopposedtothe'-H'inDNA).I'veleftoffthebases,forsimplicity'ssake.Youcanseethesugarringslinkedtogetherwithphosphatebridges.Thisisa"single-stranded"nucleicacid.Double-strandedDNAissimplytwochainsofsingle-strandedDNA,positionedsotheir"bases"caninteractwitheachother.Atleftisacartoondepictionofdouble-strandedDNA.Thesugar-and-phosphate'backbone'isdepictedinred,andthebasesaredepictedinblue.Importantly,thetwostrandstravelinoppositedirections;hencethestructureissaidtobe"anti-parallel".Thebasesinthemiddle"pairup"withbasesontheoppositestrand,sothatatype'A'nucleotideisalwaysoppositeatype'T',and'G'isopposite'C'.Theattractionbetweenthepairednucleotidesisfairlyweak,butwhenthereisawholestringofthem,itaddsuptoenoughstrengthtoholdthestrandstogether.。
6.求一篇关于基因与天才的英语作文
geneandgenius
APandora'sMusicGenomeProjectiswellknownbynow,butanarticlepublishedyesterdayinthefetchingly-titledGenomeTechnologyDailyScanreportsthatacoupleoflawyershavefiledaU.S.patentformusicgeneratedfromthegeneticinformationwithinaDNAsequence
7.关于网络的简洁英语作文要带翻译
Withthedevelopmentofeconomy,anincreasingnumberofpeople(moreandmorepeople)appreciateroleinourlivesandhasbeenusedinmanyfields.What'smore,ithasevenenteredthehomesofordinarypeople.italsohelpsuscommunicatewithoverseasfriendsmoreeffectively.
Obviously,differentpeoplehavegotdifferentattitudeabouttheinternet.Therearesomepossiblereasonsforthepresentsituation.Somepeoplethinkthattheinternetalsodoharmfulthingtoourhumanbeings.Inthefirstplace,somepeoplepouredmostoftheirenergyinchattingoninternet.itwastesmuchtimeandmoney.Inthesecondplace,somepeoplewatchthesexualpicturesandmoviesoninternet,whichmakesthemdown.Lastbutnotlease,theyareoutofthebusiness.thelackofphysicalexerciseisduetothefactthatpeoplespendtoomuchtimeoninternet.
Inmoderntimes,theInternetisbecomingmoreandmore在摩登时代,上网正变得越来越流行,popular,especially,forthemiddleschoolstudents.Somestudentsthinkitisgood特殊是对于中同学而言。
一些同学认为网络对他们很有关心。
forthemtogettheusefulimformationandstudyontheInternet.Besides(另外),他们可以上网查有关学习的有用的材料,在网上学习。
另外theycanknowaboutthelatestnews,widentheirfieldofvision,andgaintheir他们还可以了解最新消息、开阔视野,扩大学问面knowledge.Ontheotherhand,somestudentschat,palycomputergamesevenscanthebadnetworkraherthanstudy.但是,有的同学却不是用来学习的,而是用来谈天、玩嬉戏,甚至是扫瞄不良网页。
Meanwhile,along-timesearchingontheinternetmakestheirhealthbadly.而且,长时间的上网会对他们的身心健康形成严峻损害。
Inmyopinion,everycoinhastwosides,thatistosay,oneisbad,theotheroneisgood.在我看来,上网没有好坏之分,每一个事物都有两面,一面是好的,另一面就是不好的。
SoIthinkcombiningtheentertainmentwiththestudyisthebest.因而我认为把消遣与学习结合起来是最好的。
望接受感谢~
8.你盼望基因科学帮你做些什么的相关英语作文
Nowadays,thenumberofgenetically-modifiedfoodissteadilyincreasing.Thereisanargumentthatwhetherthiskindoffoodshouldbestopped.AsfarasIamconcerned,genetically-modifiedfoodshouldnotbestopped.
Firstly,thereisnecessityforgenetically-modifiedfoodtoexist.Genetically-modifiedfoodbelongstofood.Theworldislackofresources.Everyday,millionsofpeoplearoundtheworldeatonlythebareminimumoffoodtokeepthemselvesalive.Theywillbeverygratefulforhavingthiskindoffoodtosurvive.
Secondly,itiseasierforustoplantgenetically-modifiedfood.Atthesametime,theproductioncostisalsogreatlyreduced.Asaresult,foodpriceswillincreasinglylow.Thereisnodoubtthatitisgoodnewsforconsumers.
Thirdly,Itwillreducetheuseofpesticidesandthenavoidthepollutionoftheenvironment.
Inaddition,genetically-modifiedfoodcanbringusmanyotherbenefits,forexample,increasingfoodnutrition,increasingthetypesoffoodandsoon.
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