Akio Toyoda

For much of Toyota's history, we have ensured the quality and reliability of our vehicles by placing a device called an andon cord on every production line - and empowering any team member to halt production if there's an assembly problem. Only when the problem is resolved does the line begin to move again.

What do cells do when they see a broken piece of DNA? Cells don't like such breaks. They'll do pretty much anything they can to fix things up. If a chromosome is broken, the cells will repair the break using an intact chromosome.