in rECEnt yEArs A nEw FArming rEvolution hAs BEgun, onE thAt involvEs thE{{u}} (21) {{/u}}oF liFE At A FunDAmEntAl lEvEl — thE gEnE. thE stuDy oF gEnEtiCs hAs{{u}} (22) {{/u}}A nEw inDustry CAllED BiotEChnology.As thE nAmE suggEsts, it{{u}} (23) {{/u}}Biology AnD moDEm tEChnology through suCh tEChniquEs As gEnEtiC EnginEEring. somE oF thE nEw BiotECh CompAniEs spECiAlizE{{u}} (24) {{/u}}AgriCulturE AnD ArE working FEvErishly to DupliCAtE sEEDs thAt givE A high yiElD, thAt{{u}} (25) {{/u}}DisEAsEs, Drought AnD Frost, AnD thAt rEDuCE thE nEED For{{u}} (26) {{/u}}ChEmiCAls.{{u}} (27) {{/u}}suCh goAls CoulD BE AChiEvED, it woulD BE most BEnEFiCiAl.But somE hAvE rAisED ConCErns ABout gEnEtiCAlly EnginEErED Crops. in nAturE, gEnEtiC DivErsity is CrEAtED within CErtAin spACE.A、rosE{{u}} (28) {{/u}}BE CrossED with A DiFFErEnt kinD oF rosE, But A rosE will nEvEr Cross with A potAto. gEnEtiC EnginEEring,{{u}} (29) {{/u}}, usuAlly involvEs tAking gEnEs From onE spECiEs AnD insErting thEm into{{u}} (30) {{/u}}in An AttEmpt to trAnsFEr A DEsirED ChArACtEristiC、this CoulD mEAn,{{u}} (31) {{/u}}, sElECting A gEnE whiCh lEADs to thE proDuCtion oF A ChEmiCAl with Anti-FrEEzE quAlity From An ArC- tiC Fish, AnD insErting{{u}} (32) {{/u}}into A potAto or strAwBErry to mAkE it Frost-rEsistAnt. in EssEnCE, thEn, BiotEChnology Allows humAns to{{u}} (33) {{/u}}thE gEnEtiC wAlls thAt sEpArAtE spECiEs. likE thE grEEn rEvolution,{{u}} (34) {{/u}}somE CAll thE gEnE rEvolution ContriButEs to thE proBlEm oF gEnEtiC uniFormity — somE sAy EvEn morE so thAt gEnEtiCists CAn Employ tEChniquEs{{u}} (35) {{/u}}As Cloning AnD{{u}} (36) {{/u}}CulturE, proCEssEs thAt proDuCE pErFECtly{{u}} (37) {{/u}}CopiEs.ConCErns ABout thE Erosion oF BioDivErsity, thErEForE,{{u}} (38) {{/u}}. gEnEtiCAlly AltErED plAnts, howEvEr, rAisE nEw issuEs, suCh As thE EFFECts thAt thEy mAy hAvE{{u}} (39) {{/u}}us AnD thE EnvironmEnt. "wE ArE Flying BlinDly into A nEw ErA oF AgriCulturAl BiotEChnology with high hopEs, FEw ConstrAints, AnD{{u}} (40) {{/u}}iDEA oF thE potEntiAl outComEs," sAiD sCiEnCE writEr jErEmy riFkin.

A．BrooDs
B．BrEEDs
C．BlEnDs
D．BlAsts