A new technology known as CRISPR (Clustered Regularly Interspaced Interspaced Short Palindromic Repeats) as been created that can potentially change genes so that people will be not subject to certain diseases or illnesses. It is comparable to word correcting features on our devices, in which when a word has been spelled incorrectly, the computer automatically corrects it for us. In addition, it is also not too expensive, which will allow it to be more accessible.
One simplistic way of describing one way CRISPR works is that DNA from certain viruses and bacteria is cut up and sent to a CRISPR technology, which creates new RNA that targets and protects against the invading DNA from the viruses and bacteria.
Another way CRISPR is used is that a small piece of RNA is created (which is linked to specific portion of the DNA strand) and bound to an enzyme called CAS9 (or another enzyme). The RNA identifies the portion of the DNA to be cut, and then the enzyme is used to cut the DNA so that scientists can modify the DNA at the specific area.
https://futurism.com/a-new-gene-editing-breakthrough-could-forever-change-life-on-earth/
https://www.neb.com/tools-and-resources/feature-articles/crispr-cas9-and-targeted-genome-editing-a-new-era-in-molecular-biology
https://ghr.nlm.nih.gov/primer/genomicresearch/genomeediting
