A new technique, based on a chain reaction of recognition and hybridization events between two sets of DNA hairpin molecules, offers an enzyme-free alternative for the rapid detection of specific ...

This is why it’s called a chain reaction. But everything has to be positioned at just the right angles to ... (People sometimes ask if there is any remaining risk of radioactivity, but the site was ...

Polymerase chain reaction, or PCR, is a laboratory technique used to make multiple copies of a segment of DNA. PCR is very precise and can be used to amplify, or copy, a specific DNA target from a ...