Recombinant DNA Technology
Plant transformation can be obtained by

infecting plants with a tobacco mosaic virus
combining plant and animal cells in culture
shooting DNA into plant cells with a gun
using the E. coli bacterium to infect plant roots

ANSWER DOWNLOAD EXAMIANS APP

Recombinant DNA Technology
An expression vector

All of these
always contains an origin of replication
usually contains a gene that confers antibiotic resistance to the bacterial host
always contains DNA segments for the regulation of mRNA production

ANSWER DOWNLOAD EXAMIANS APP