PCR can be used to identify rare DNA sequences in DNA libraries by increasing the abundance of a particular sequence. This is accomplished by subdividing the original library into pools of decreased complexity and screening each pool or group of pools for a given DNA sequence. - [Read PCR-Based Screening of DNA Libraries Protocol]
PCR can be used to identify rare DNA sequences in DNA libraries by increasing the abundance of a particular sequence. This is accomplished by subdividing the original library into pools of decreased complexity and screening each pool or group of pools for a given DNA sequence. A pool that contains the desired clone is subsequently subdivided into smaller pools, each of which is screened using the same PCR protocol that was used for the primary screen. - [Read PCR-Based Screening of DNA Libraries Protocol]