...want to choose enzymes that: Flank your insert, but do not cut within your insert Are in the desired location...(usually in the Multiple Cloning Site (MCS)), but do not cut elsewhere on the plasmid Will result in your...you cannot find enzymes that meet these criteria, do not fear. You have other options, such as: Adding...empty plasmid, you will still have colonies when you do not add ligase. If the colonies are a result of recipient...significantly more colonies when you add ligase. If you do not see any colonies, you should conduct a positive...