. Gene recombinant technology is used for-
(a) Vectorless gene transfer into target cell
(b) Vector based gene transfer into target cell
(c) Direct transfer of DNA protein complex
(d) None of these
(b) Cloning vectors are small plasmid or phage replicons that have one or more restriction sites into which foreign DNA can be inserted (Recombinant DNA). This vector is ultimately responsible for the transfer of DNA into target cell.