Polymerase chain reaction (PCR) is a laboratory technique used to amplify DNA sequences. The method involves using short DNA sequences called primers to select the portion of the genome to be amplified.olymerase chain reaction (PCR) is a laboratory technique used to amplify DNA sequences. The method involves using short DNA sequences called primers to select the portion of the genome to be amplified.
The smallest possible size for anything in the universe is the Planck Length, which is 1.6 x10-35 m across.
Laughter is the Shortest Distance~~~Susie Austin. Laughter is the shortest distance. between two people. Victor Borge. Laughter is the shortest distance between two people as it connects us and helps keep things in perspective. It can lighten any situation can reduce stress and tension, and allows us to be human. I used to have a t-shirt that said Sense of humor necessary!