Welcome to the uni（M5U2）

Unit3Scienceandnature,Welcometotheunit,Theadvancedtechniqueingenetics(遗传学)withwhichscientistscancreateorcopythingswiththesameDNAiscalled?,Scientificdefinition,CloningisthecreationofcellsorwholeanimalsbyusingDNA(脱氧核糖核酸)fromasingle“parent”,bypassing(绕道而行)thenormalreproductive(生殖)process.TheclonehasthesameDNAtothe“parent”.,Dollyanditscreator,WhatdoyouknowaboutDolly?,theworldsfirstclonedmammalcreatedbyScottishscientistsin1996diedin2003becauseoflungdiseasemanycountrieshavebannedhumancloningsinceDollysbirth,theclonedkitten,ThekitteninthepictureiscalledCc.Itsnameisfrom“Copycat”.ScientistsintheUSAcreateditwithacelltakenfromitsmother,Rainbow.ItwasborninDecember2002.,theclonedfemalepigs,ThefivelittlepigsnamesareNoel,Angel,Star,JoyandMary.,thefirstclonedmonkey,ThenameoftheclonedmonkeyisANDi.Itisfrom“insertedDNA”speltbackwards.Itisthefirstgeneticallymodifiedmonkey.ThetechnologyisdifferentfromthatusedforDolly.,Doyouthinktheclonedanimalsareashealthyasthenaturalones?,Dollyis,butscientistsdonotyetknowwhetherthisistheexception(例外)ortherule.Someearlyevidencessuggestthatclonesmayhavehealthproblemsandthattheymayageprematurely(早衰的，未老先衰).,Ifyouareascientist,whatdoyouwanttoclone?Why?,Brainstorming,Whatdoyouthinkofthenewkindoftechnology?Doesithaveadvantagesordisadvantages?,Discussion,Doyouthinkgovernmentsshouldpasslawstoprohibithumancloning?Whyorwhynot?,Theyshouldnt,for,reasons:,cloningcanhelpcuremanydiseasesandsavealotofpeoplelives.2.3.,PartA,Theyshould,for,reasons:,cloningcanleadtoethical(伦理)problems.2.3.,PartB,Givinganoralreport,Todayourclasshadadiscussionaboutwhetherthegovernmentsshouldpasslawstoprohibithumancloning.Somestudentsthinkthatthegovernmentsshould,forHowever,someotherstudentsthinkitnecessarytoprohibit,forInmyopi