Which of the following is NOT a characteristic of a good vector (plasmid)? None of the above Plasmids can carry one or more resistance genes for antibiotics. b. Plasmids have an origin of replication so they can reproduce independently within the host cells OC Vectors have been engineered to contain an MCS (multiple cloning site) d. Plasmids contain reporter genes to provide vistal indication of whether or not a cell contains a vector with an insert.