<prompt> Which of the following is not used as vector in genetics ?AdenovirusProteasomeLiposomeRetrovirus  <response>: The traditional viral vectors are adenoviral vectors followed by papilloma viruses and retroviruses. Retroviruses are the main and most commonly used viral vectors.Other cloning vectors for gene delivery are :-PlasmidBacteriophageCosmidBAC Bacterial aificial chromosomeYAC Yeast aificial chromosome.Liposomes or lipoplexes are also used as vector for gene delivery. 