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.
More so, is the largest measurement of distance there is. The reason for this is because the approximate radius of the entire observable universe is just 14 gigaparsecs. The equivalent distance in meters is 3.3 x 10^25 meters, which could also be written as: 330,000,000,000,000,000,000,000,000 meters. (Three-hundred and thirty septillion meters)