The vector DNA can then be taken up by a host organism, commonly a population of Escherichia coli or yeast, which allows for easy amplification and retrieval of specific clones from the library for analysis.
The vector DNA can then be taken up by a host organism, commonly a population of Escherichia coli or yeast, with each cell containing only one vector molecule. Using a host cell to carry the vector allows for easy amplification and retrieval of specific clones from the library for analysis.