Multiple cloning site

From Freepedia

A multiple cloning site (MCS) is a short segment of DNA which contains many (usually 10+) restriction sites - a standard feature of engineered plasmids. Extremely useful in biotechnology, bioengineering, and molecular genetics, MCSs let a biotechnologist insert a piece of DNA or several pieces of DNA into the region of the MCS. This can be used to create transgenic organisms, also known as genetically modified organisms (GMOs).