In recombinant DNA technology, a vector is vital to transfer and replicate particular genes into host organisms. Vectors are used to carry foreign DNA into the host cell.
The steps involved in using vectors include (1) isolating the foreign gene, (2) inserting the gene into the vector, (3) transportation of the foreign gene to the host cell, (4) replication, and (5) application.
Through this process, vectors introduce many genes to host cells that can utilize the gene for different purposes. Scientists often use vectors to exploit natural cellular structures and produce artificial (desired) results.