I think I got it: the plasmids (plural) contain the Cas9 and the gRNA targeting rpsL in the host organisms [1] (plus the DNA template for the homology directed

I think I got it: the plasmids (plural) contain the Cas9 and the gRNA targeting rpsL in the host organisms [1] (plus the DNA template for the homology directed repair). [1] http://www.the-odin.com/crispr-bacterial-guide/ http://www.the-odin.com/crispr-bacterial-guide/