Fisher Biosciences, through Fisher Scientific, has entered into an expanded PCR (polymerase chain reaction) licensing agreement with Applied Biosystems, an Applera business. Under the agreement, Fisher Biosciences will develop new real-time PCR and PCR-related reagents. PCR is a key technology in which a segment of DNA or RNA is copied or “amplified” so that it can be more readily analyzed. Real-time PCR enables the detection of amplified DNA during the process of amplification ...