You can do an experiment to determine motility. You use a medium of agar that has tetrazolium salt (TTC). The TTC serves as a terminal electron acceptor for the bacteria and turns the medium red. You...
If you want to know in general what selection method one can use: - resistance to other antibiotics (chloramphenicol, kanamycin, zeocin ) - use of auxotrophic strains, which are unable to grow in the...