Question
Write a note on vectors used during recombinant DNA technology. Draw diagram of any two vectors
Solution
A vector or vehicle DNA is used as carrier for transferring desired DNA into host cells. They have the ability to replicate independently in the host cell and produce copies of the desired DNA.
Examples A plasmid can be used as vector because it can replicate automously and make several copies of itself.
Artificial chromosomes from bacteria and yeast called BACs and YACs can also be use as vectors and are more efficient for eukaryotic gene transfers. 
Fig. Plasmid and Yeast Artificial Chromosome
