Multiple choice Which important parts are present in pBR322? Penicillin--Ori--EcoRI; HindIII, EcoRV, BamHI Lipramycin--EcoRI; HindIII, EcoRV, BamHI Cephalosporin--Ori--EcoRI; HindIII, EcoRV, BamHI amp--tet--Ori--EcoRI; HindIII, EcoRV, BamHI Ampicillin--terramycin--Ori--EcoRI; HindIII, EcoRV, BamHI Reveal answer Fill a bubble to check yourself D Correct answer Explanation --amp--tet-- are ampicillin and tetracycline markers for identification and isolation of transformed cloning vectors.