SectionⅣOtherPartsoftheModule[原文呈现]CloningandDNAManypeoplethinkthatthescienceofgenetics①andcloningisrecent
It'scertainlytruethat②in1953,WatsonandCrick,twoscientistsatCambridgeUniversity,England,discoveredthestructureoftheacid③DNA—atransparent④twisting⑤laddermadeofthefundamental⑥components⑦oflife⑧
Butinfact,itwasin1866that⑨Mendelfirstrecordedtheresultsofgrowingpeaplants
Heunderstoodthatboththeparentplantshadinfluencedthegeneticmakeup⑩ofthenewplant
In1973,biochemistsCohenandBoyerdiscoveredaprocedure⑪touseenzymes⑫—chemicals⑬formedinthebody—tounzip⑭theDNA,tocutout⑮asequenceof⑯genes⑰,andfinallytoinsert⑱themintothehostcell⑲andcombinewith⑳itsDNA
[读文清障]①genetics/d'netIks/ʒən.遗传学②that引导主语从句,it作形式主语
③acid/'æsId/adj
酸(性)的④transparent/træns'pærnt/əadj
透明的⑤twisting/'twIstI/ŋadj