Introduction Today we are going to learn about CRISPIR. So let's roll and learn about it! What is CRISPIR? CRISPIR is nothing but editing DNA. What is Cas9 and how does it work? Cas9 is a protein. Let's say yellow fever enters the body and body makes the protein Cas9. Now the body has faced yellow fever before and it has a fragment of the virus' DNA. It creates the Cas9 protein and puts the fragment of viral DNA in the protein. Then the body leaves it to go on patrol. So Cas9 like "scans" every "invader" DNA in the body with the fragment it has. Then snip snap it cuts the DNA. In other words Cas9 patrols the body until it finds an "invader" with the DNA fragment Cas9 has. If that...