CRISPR-cas 9 technology allows biologist to edit genes. Cas-9 is an enzyme that works as biological scissors that can cut DNA. A small RNA molecule is required to direct the enzyme to a specific sequence of interest. Once the DNA is cut out, the natural machinery of the bodies DNA repair mechanism takes over and will seal up the cut out DNA ends. This technology can be used to alter protein/gene expression, which could be very helpful when researching ways for curing diseases. This brings up an ethical question of who should be able to alter genes? Should parents be able to alter genes of their unborn child to prevent them from being deaf, having a certain eye color, certain disease etc? If this technology was offered to the public, what would be the price?
Personally, it does not seem ethical to spend this technology editing certain genes that could make a parents ideal child. You shouldn't be able to choose whether or not you want your child to have certain features. It almost seems as if it would be playing to role of God. It seems as if this technology was offered to the public, it would have to come with many regulations. I think that using this gene editing tool to prevent disease would be awesome though. If science was able to block a certain viral protein from being formed but cutting out the DNA that codes for it, it could prevent multiple fatal diseases. It just becomes the next question of what is the limitations of this technology? How would companies prevent people from going to far with this technology? Below is a picture of the CRISPR-cas-9 system.