MIT crafts genetic circuits that remember their work through DNA

It's easy to find work on gene-based storage; finding genes that will do any of the heavy lifting is another matter. MIT believes it has a genetic circuit that will finally get to work, and then some. In using recombinase enzymes to alter DNA sequences serving as logic gates, researchers have developed a cellular circuit that not only mimics its silicon cousins, but has its own built-in memory. As the gate activation makes permanent changes to a given DNA sequence, any gate actions stay in memor...