-RISPE Upon studying these palindrome DNA sequences scientists found they matched perfectly with __ DNA, particularly __ which are viruses that invade bacteria. "CRISPR-Cas" provides sequence-specific adaptive immunity in bacteria by snipping viral DNA and integrating short virus DNA sequences in the bacteria's CRISPR locus of its genome, 11 __ refers to a special protein that is required for this allowing the cell to __ and __ viral infections. specific type of __ Essentially, the CRISPR system can __ and __ DNA.This made scientists think what if we could cure genetic diseases by cutting out mutations and adding healthy DNA sequences?

## Step 1<br />The problem is a fill-in-the-blank question related to the field of biology, specifically genetics and microbiology. The question is about the CRISPR-Cas system, which is a mechanism that provides adaptive immunity in bacteria. This system works by snipping viral DNA and integrating short virus DNA sequences into the bacteria's CRISPR locus of its genome.<br /><br />## Step 2<br />The question also refers to the potential of the CRISPR system to cure genetic diseases. This is because the system can cut out mutations and add healthy DNA sequences.<br /><br />## Step 3<br />The question is asking for the type of DNA that the CRISPR system can match perfectly with, the type of viruses that invade bacteria, the special protein required for the CRISPR system to function, and the function of the CRISPR system in the cell.