What Is CRISPR | Prenatal Pillows

CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) is a family of DNA sequences found in the genomes of prokaryotic organisms such as [[bacteria|bacteria]] and [[archaea|archaea]], which play a key role in the antiviral defense system of these organisms. CRISPR sequences are derived from DNA fragments of [[bacteriophages|bacteriophages]] that had previously infected the prokaryote or one of its ancestors.