If you're shooting a university's graduation, then odds are that most of the people in attendance are from out of town and plan to leave soon. In addition to the camera, tripod and flash, you should also have a great photo printer so that you can deliver the goods on the same day.
Polymerase chain reaction. Polymerase chain reaction, (PCR), a technique used to make numerous copies of a specific segment of DNA quickly and accurately.
Polymerase chain reactions (PCR) are what allow for small samples of DNA to replicate numerous times and eventually become plentiful enough for proper analysis. PCR is useful â¦ in DNA fingerprinting as they provide a quick and efficient way to replicate DNA.n the simplest form of PCR, there are two types of primers used:   The forward primer   The reverse primer. Edit. Share to: 1  Replace a worn bicycle chain A bicycle chain is always exposed to the elements.