We first consider the OR gate. Figure 3a is a circuit diagram designed with a PTL configuration together with a ... which significantly reduces the complexity of constructing a full-adder circuit.

In the new study, specialized circuits known as logic gates were designed in the lab, then incorporated into living cells. The tiny circuit switches are tripped when messages (in the form of RNA ...

If a gate is active, it expresses a signal that directs the Cas9 to deactivate another gate within the circuit. In this way, the researchers can "wire" together the gates to create logical ...