Gene Therapy is a process to __ with __ ones to treat genetic __ A popular gene therapy process borrows "technology" from __ When viruses infect our cells, they essentially hijack our cells and use our cellular mechanisms to create more of their own __ material. We can alter viruses to be nonvirulent, and __ healthy copies of __ into our cells. Gene therapy typically uses retroviruses or adenoviruses to deliver genes, in what are known as" __ ".

## Step 1<br />The first blank in the sentence "Gene Therapy is a process to __ with __ ones to treat genetic __" is filled with the word "replace". This is because gene therapy involves replacing the faulty genes in an individual's cells with healthy ones.<br /><br />## Step 2<br />The second blank in the sentence "A popular gene therapy process borrows "technology" from __" is filled with the word "bacteria". This is because a popular method of gene therapy involves using bacteria to produce the desired gene.<br /><br />## Step 3<br />The third blank in the sentence "When viruses infect our cells, they essentially hijack our cells and use our cellular mechanisms to create more of their own __ material" is filled with the word "genetic". This is because viruses use our cells' mechanisms to create more of their own genetic material.<br /><br />## Step 4<br />The fourth blank in the sentence "We can alter viruses to be nonvirulent, and __ healthy copies of __ into our cells" is filled with the word "insert". This is because we can alter viruses to be nonvirulent and insert healthy copies of genes into our cells.<br /><br />## Step 5<br />The fifth blank in the sentence "Gene therapy typically uses retroviruses or adenoviruses to deliver genes, in what are known as" __ " is filled with the phrase "viral vectors". This is because gene therapy typically uses retroviruses or adenoviruses to deliver genes, which are known as viral vectors.