[" 1.Which of the following contains the key tools for "],[" recombinant DNA technology? "],[" (i) Restriction endonucleases,ligases,vectors "],[" (ii) Ligases,host organism,polymerase enzymes "],[" (iii) Vectors,Taq polymerase,primers "],[" (iv) Restriction exonucleases,ligases,primers,bioreactors "],[[" (a) (i),(ii) and (iii) "," (b) (i) and (ii) "],[" (c) (i),(iii) and (iv) "," (d) (iii) and (iv) "]]