After exposure to Agrobacterium tumefaciens bacteria containing both a recombinant T-DNA vector and a helper plasmid, new plants can be grown from single cells in the presence of herbicide.Without the herbicide,

Question

Quizplus · Accepted Answer

The presence of herbicide in the growth medium is to select for cells that have been transformed with a T-DNA vector containing a gene for herbicide resistance. Without the herbicide, both transformed (those with the T-DNA vector) and nontransformed cells can grow, as the selective pressure (herbicide) that would normally kill the nontransformed cells is absent.

After Exposure to Agrobacterium Tumefaciens Bacteria Containing Both a Recombinant