Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) has already been introduced. Since its introduction four decades ago, genetic engineering has been a source of high hopes for health, agriculture, and industry. But it has also provoked deep anxiety, not least owing to the laborious nature of the genome-editing process. Now, a new technique, CRISPR-Cas, offers both precision and the ability to modify the genome text at several places simultaneously. But this has not eliminated the reason for concern.
The genome can be viewed as a kind of musical score. Just as sheet music tells musicians in an orchestra when and how to play, the genome tells the cell’s component parts (generally proteins) what they must do. A score may also include notes from the composer, showing possible changes, frills that can be added or omitted depending on the circumstances. For the genome, such “notes” emerge from cell survival over many generations in an ever-changing environment. - Hong Kong
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https://www.weforum.org/agenda/2017/12/scientists-have-found-the-holy-grail-of-genetic-engineering