A genomic
library is a collection of DNA from a single organism. The DNA from the source
organism in study is divided into multiple fragments and packaged within
cloning vectors such that each carries a portion of it. Different vectors can
store differing amounts of DNA. Once the DNA has been inserted, the vector can
be introduced into host organism (commonly a population of bacteria). Together,
the collection of bacteria holds an organism's complete genome. Once a genomic
library is produced, researchers can work with it in a number of different
ways.
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