check all statements that are accurate regarding this scenario and the experimental results shown. blue dots on plates are bacterial colonies. check all that apply penicillin would be useful in fighting this strain of e.coli. penicillin would be useful in fighting this strain of e.coli. this strain of e.coli is killed by ampicillin. this strain of e.coli is killed by ampicillin. each colony that grows is composed of cells that are clones of each other. each colony that grows is composed of cells that are clones of each other. antibiotic resistant cells may have acquired resistance as a result of horizontal gene transfer. antibiotic resistant cells may have acquired resistance as a result of horizontal gene transfer. this strain of e.coli is resistant to penicillin. this strain of e.coli is resistant to penicillin. all strains of e. coli are resistant to penicillin. all strains of e. coli are resistant to penicillin. this strain may have gained a plasmid with a gene encoding penicillin resistance. this strain may have gained a plasmid with a gene encoding penicillin resistance. the control plate with no antibiotic is important to demonstrate that cells were viable under these experimental conditions. the control plate with no antibiotic is important to demonstrate that cells were viable under these experimental conditions. this strain of e. coli is resistant to ampicillin. this strain of e. coli is resistant to ampicillin. the presence of a virulence plasmid likely confers resistance to e. coli strains. the presence of a virulence plasmid likely confers resistance to e. coli strains.