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By BRIDGE8 under license from Mangorolla CIC 2024
DNA can be dangerous when it is not our own. Some viruses used RNA as their genetic material, they make DNA copies of it when we have been infected with them and then they can put their DNA copy into our own genome! When the virus is ready to replicate, it can make copies of itself from the DNA it has put in our genome and infect other cells. Once the virus has integrated itself into our DNA it is stuck there, no way to get it out. Sometimes these viruses can lay dormant inside our DNA and not cause much of a problem. But other times they may integrate int the middle of a gene which can disrupt how that gene functions.
This process used by viruses is one that some scientists are taking advantage of for gene therapy. If you want to know a little more on gene therapy. Have a look at the answers from Miranda and Yagiz on this question https://bit.ly/15cDMuj
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