CRISPR gene editing  based on Clustered regularly interspaced short palindromic repeats (CRISPR) -Cas9 is an enzyme that uses the gene sequences to help control, cleave, and separate specific DNA sequences that are complementary to a CRISPR sequence. These sequences and enzymes were originally derived from bacteriophages. The importance of this technique in the field of genetic engineering is that it gives the ability to have highly precise targeted gene editing and the cost factor for this technique is low compared to other tools. The ability to insert DNA sequences into the organism is easy and fast, although it can run into expression issues in higher complex organisms.