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.
This is the uncertainty in position of a particle with the lowest possible uncertainty (measured with lowest possible energy). When we convert back to SI units from natural units, we find that the minimum possible uncertainty in position for any particle is 1.616 * 10^-35 meters - the Planck length.