age = int(input("How old are you?")) if age >= 70: print("You are aged to perfection!") else: print("You are a spring chicken!") This program uses selection to ...

Controlling gene activity is important for engineering plants for improved bioenergy crops and other applications. This research developed synthetic genes that use Boolean logic gates to achieve ...

Scientists have developed lots of techniques for targeted drug delivery—directly to tumors, for example—to optimize therapeutic efficacy while minimizing side effects. But a new system may be the most ...